The aim of the study is to find out the ability to understand mathematical concepts of teachers prospective in Mathematics Education Program FKIP University Nommensen in the fractional count operations material. This research is a descriptive study with the aim of the study describing the effectiveness of the Problem Based Learning Model. The results of the second trial described that the effectiveness of the Problem Based Learning Model was concluded: (i) the percentage of the students who understood the concept at least 85.29% or 29 students out of 34 students who took the test. (ii) the achievement of the ideal percentage of time for each category of student activity, (iii) the average of the lecturer ability to manage learning is 3.54, including the good category, (iv) student responses to the components and learning activities are positive is 90%.
The purpose of this research is to analyze the improvement of students' mathematical literacy ability through the use of mathematics teaching materials with metacognitive approach guidance. This research will be held in the city of Kendari to the subject of this research target is students who are at grade 5 Land in Junior High VIIID Kendari years lessons 2017/2018 with many limited scale trial class is only required as much as 1 class. To know the significance of the increase in the literacy abilities of students using paired t-test. Data processing using the SPSS program with criteria if α=0,05 then there is an increased of student's mathematical literacy ability. The results of the analysis on the stages of the evaluation shows the learning materials with metacognitive approach guidance can provide better against an increase in student learning. The ability of the early mathematical literacy against students is very less because of learning during this time students have not been directed with the ability of mathematical literacy. After the students get learning by using learning materials through metacognitive approach guidance, the ability of mathematical literacy students’ level 3 and level 4 underwent significant improvement.
EVALUATION OF STUDENT PERCEPTIONS ON “MUDDIEST POINT” CLASSROOM ASSESSMENT TE...John1Lorcan
The purpose of this study is to use “Muddiest point” classroom assessment technique as a type of formative
assessment in Software Development Practices (ICT) course at University of Vocational Technology and to
assess student perceptions on the technique. The study employed “Muddiest point” classroom assessment
technique in the class and conducted a perception survey with regard to use of muddiest point assignments
at the end of the course. As per the survey A majority of students 30 numbers agreed that Muddiest Point
CAT is beneficial to the course (Mean =4.24 n=45) and 28 agreed Muddiest point CAT to be continued in
the course.(Mean=4.22) 24 students agreed that The Muddiest Point CAT should be applied to other
courses as well (Mean=4.18. 53% of students satisfied with the use of Muddiest point CAT for Classroom
learning and 31% were extremely satisfied . The perception survey showed positive overall student
perception on CAT used. And the technique can be used as a simple, but effective formative assessment
method for Software Development Practices (ICT) course.
Students Effort to Improve Learning Results by Using Quantum Learning Method ...AI Publications
This research aims to determine student learning outcomes by applying Quantum Learning method of prism and pyramid by eight grade students of SMP Negeri 2 Sipoholon in academic year 2017/2018. This type of research is Class Action Research (CAR). The subjects in this study were eight grade students of SMP Negeri 2 Sipoholon in academic year 2017/2018 were 28 student. The objective of this research is improving student learning outcomes. Instruments used were: description tests, observation sheets and interviews. Descriptive tests use to find out student learning outcomes, observation sheets use to find out ability of the teacher to apply learning and interviews to find out where the students are wrong. The average initial test score was 35.46 and the classical completeness was 0%. The average value of the first cycle was 59.78. Students who completed were 11 students (39.29%), 17 students (60.71%) were not finished, and the implementation of learning was in a less category (value 2.00). The increase in classical completeness was 39.29% and the average increase was 24.32 from the results of the initial tests. The average value of the second cycle was 76.04 and 25 students (89.29%) from 28 students had achieved mastery learning while the other 3 students (10.71%) had not yet completed, and the learning went well (average 3, 00). Cycle II has achieved classical completeness. Classical completeness has increased by 50% and the average has increased by 16.25 from cycle I. Thus the Quantum Learning method can improve student learning outcomes on the Prism and Piramid by eight grade students of SMP Negeri 2 Sipoholon in academic year 2017/2018.
This research is aimed to know students‟ concept understanding profile on heat and temperature. This research is descriptive research using a qualitative approach. Subjects of this research are 10th-grade students in Surakarta in the academic year of 2016/ 2017. They represent high, medium, and low categorized school. Subject selection is based on the average score of physics at the latest four years. This research uses the question of extended response test through essay question. Before having given to the subjects, essay questions are validated by the experts. Based on the research result and the data analysis, students‟ concept understanding on heat and temperature as follows: (1) The average percentage of students‟ concept understanding at high categorized school is 60,66%, at medium categorized school is 51,47%, and at low categorized school is 48,83%, (2) Most students have misconception on basic concept of heat and temperature such as heat capacity, thermal conductivity, and expansion concept.
The purpose of this research is to develop test questions of problem solving ability on work-energy material for high school students class X. This type of research is research and development. The model used in this study is ADDIE with the stages of analyzing, planning, developing, implementing, and evaluating, but this study only up to the implementation stage. The test developed in this research consists of three items of problem solving ability description that is multi context. Validation of item was done by content validation and empirical validation. The results of content validation indicate that the average score of test items is 3,125 with good category. The results of empirical validation indicate that there are two valid questions and one invalid question. Two valid questions have a Cronbach Alpha coefficient of 0.807. The results of the implementation of the test showed that the average student problem solving abilities in Question 1 is 17.41 of a maximum score of 25, the lowest score is 10 and the highest is 23. The results of students in the question number 2 by 16.60 of a maximum score of 25, with the lowest score is 10 and the highest is 22. These results indicate that the test instrument is feasible to use to assess students' problem solving abilities.
Assessment for Effective Lecture on Knowledge Retention towards Student Learn...AI Publications
This study assessed the effective lecture for knowledge retention towards student learning. The survey involved 42 university students (fourth year in Chemical Engineering and Sustainability Energy Department, UNIMAS) where all of them were tested before and after the class through a 10 questions quiz as assessment. From this quiz assessment, only 50% (21 students) of the students managed to answer at least 7 questions correctly before the lecture was delivered. After delivering lecture, 100% (42 students) of the students managed to answer 10 questions correctly. However, after four weeks, only 90% (38 students) of the students managed to score 10 questions correctly due to short knowledge retention.
The purpose of this research is to analyze the improvement of students' mathematical literacy ability through the use of mathematics teaching materials with metacognitive approach guidance. This research will be held in the city of Kendari to the subject of this research target is students who are at grade 5 Land in Junior High VIIID Kendari years lessons 2017/2018 with many limited scale trial class is only required as much as 1 class. To know the significance of the increase in the literacy abilities of students using paired t-test. Data processing using the SPSS program with criteria if α=0,05 then there is an increased of student's mathematical literacy ability. The results of the analysis on the stages of the evaluation shows the learning materials with metacognitive approach guidance can provide better against an increase in student learning. The ability of the early mathematical literacy against students is very less because of learning during this time students have not been directed with the ability of mathematical literacy. After the students get learning by using learning materials through metacognitive approach guidance, the ability of mathematical literacy students’ level 3 and level 4 underwent significant improvement.
EVALUATION OF STUDENT PERCEPTIONS ON “MUDDIEST POINT” CLASSROOM ASSESSMENT TE...John1Lorcan
The purpose of this study is to use “Muddiest point” classroom assessment technique as a type of formative
assessment in Software Development Practices (ICT) course at University of Vocational Technology and to
assess student perceptions on the technique. The study employed “Muddiest point” classroom assessment
technique in the class and conducted a perception survey with regard to use of muddiest point assignments
at the end of the course. As per the survey A majority of students 30 numbers agreed that Muddiest Point
CAT is beneficial to the course (Mean =4.24 n=45) and 28 agreed Muddiest point CAT to be continued in
the course.(Mean=4.22) 24 students agreed that The Muddiest Point CAT should be applied to other
courses as well (Mean=4.18. 53% of students satisfied with the use of Muddiest point CAT for Classroom
learning and 31% were extremely satisfied . The perception survey showed positive overall student
perception on CAT used. And the technique can be used as a simple, but effective formative assessment
method for Software Development Practices (ICT) course.
Students Effort to Improve Learning Results by Using Quantum Learning Method ...AI Publications
This research aims to determine student learning outcomes by applying Quantum Learning method of prism and pyramid by eight grade students of SMP Negeri 2 Sipoholon in academic year 2017/2018. This type of research is Class Action Research (CAR). The subjects in this study were eight grade students of SMP Negeri 2 Sipoholon in academic year 2017/2018 were 28 student. The objective of this research is improving student learning outcomes. Instruments used were: description tests, observation sheets and interviews. Descriptive tests use to find out student learning outcomes, observation sheets use to find out ability of the teacher to apply learning and interviews to find out where the students are wrong. The average initial test score was 35.46 and the classical completeness was 0%. The average value of the first cycle was 59.78. Students who completed were 11 students (39.29%), 17 students (60.71%) were not finished, and the implementation of learning was in a less category (value 2.00). The increase in classical completeness was 39.29% and the average increase was 24.32 from the results of the initial tests. The average value of the second cycle was 76.04 and 25 students (89.29%) from 28 students had achieved mastery learning while the other 3 students (10.71%) had not yet completed, and the learning went well (average 3, 00). Cycle II has achieved classical completeness. Classical completeness has increased by 50% and the average has increased by 16.25 from cycle I. Thus the Quantum Learning method can improve student learning outcomes on the Prism and Piramid by eight grade students of SMP Negeri 2 Sipoholon in academic year 2017/2018.
This research is aimed to know students‟ concept understanding profile on heat and temperature. This research is descriptive research using a qualitative approach. Subjects of this research are 10th-grade students in Surakarta in the academic year of 2016/ 2017. They represent high, medium, and low categorized school. Subject selection is based on the average score of physics at the latest four years. This research uses the question of extended response test through essay question. Before having given to the subjects, essay questions are validated by the experts. Based on the research result and the data analysis, students‟ concept understanding on heat and temperature as follows: (1) The average percentage of students‟ concept understanding at high categorized school is 60,66%, at medium categorized school is 51,47%, and at low categorized school is 48,83%, (2) Most students have misconception on basic concept of heat and temperature such as heat capacity, thermal conductivity, and expansion concept.
The purpose of this research is to develop test questions of problem solving ability on work-energy material for high school students class X. This type of research is research and development. The model used in this study is ADDIE with the stages of analyzing, planning, developing, implementing, and evaluating, but this study only up to the implementation stage. The test developed in this research consists of three items of problem solving ability description that is multi context. Validation of item was done by content validation and empirical validation. The results of content validation indicate that the average score of test items is 3,125 with good category. The results of empirical validation indicate that there are two valid questions and one invalid question. Two valid questions have a Cronbach Alpha coefficient of 0.807. The results of the implementation of the test showed that the average student problem solving abilities in Question 1 is 17.41 of a maximum score of 25, the lowest score is 10 and the highest is 23. The results of students in the question number 2 by 16.60 of a maximum score of 25, with the lowest score is 10 and the highest is 22. These results indicate that the test instrument is feasible to use to assess students' problem solving abilities.
Assessment for Effective Lecture on Knowledge Retention towards Student Learn...AI Publications
This study assessed the effective lecture for knowledge retention towards student learning. The survey involved 42 university students (fourth year in Chemical Engineering and Sustainability Energy Department, UNIMAS) where all of them were tested before and after the class through a 10 questions quiz as assessment. From this quiz assessment, only 50% (21 students) of the students managed to answer at least 7 questions correctly before the lecture was delivered. After delivering lecture, 100% (42 students) of the students managed to answer 10 questions correctly. However, after four weeks, only 90% (38 students) of the students managed to score 10 questions correctly due to short knowledge retention.
THE IMPLEMENTATION OF COOPERATIVE LEARNING BY GIVING INITIAL KNOWLEDGE IN COL...susilosudarman42
Penelitian tentang pemberian pengetahuan awal terhadap proses belajar mengajar melalui model pembelajaran cooperative learning pada materi koloid kimia SMA
It is necessary to develop metacognitive skills-based teaching materials to foster mathematical problem-solving abilities. This research is a research and development. Method used for development using four phases: Design, Construction, Testing, Evaluation and Revision. The criteria used to assess the quality of the learning device refer to the material quality criteria namely: validity, practicality, effectiveness. Subject of trials in this research are 25 students of XI IPA-4 and 25 students of XI IPA-2. Two indicators of this study are metacognitive skills and problem solving. Metacognitive skills are: prediction skills, planning skills, monitoring skills, and evaluation skills. Indicators of problem solving are: understanding the problem, devising a plan, carrying out the plan, and looking back. The data are collected by giving Tests and questionnaires, and through observations. The research instruments are: questionnaire of validation for teaching materials, student questionnaire responses to instructional materials, observation sheet activities of learners, observation sheets of learning implementation and learning management observation sheet. The result of this research is metacognitive skills-based teaching materials are succeeded (fulfilling the criteria of valid, practical, and effective) to emerge students mathematical problem-solving.
Project-Based Learning Guided Lesson Study Improve the Achievement of Learnin...iosrjce
The research impact project-based learning guided lesson study in Seminar Accounting Education
course has been conducted in 2012. The research was focused to improve student achievement of learning
outcomes in Seminar Accounting Education course at Department of Accounting, State University of Malang.
The learning outcome were defined on skill levels, the exploration ability and reviewing issues (contemporary)
in the field of accounting education both conceptual and factual, creating of research proposal, and final grade.
The research approach was classroom action research guided lesson study. The data were analyzed by
comparing student score with the minimum requirement score and the improvement of score from cycle 1 to
cycle 2. The implementation of project-based learning guided lesson study improved the ability of student to
create research proposal. The average score achieved by the students has surpassed the minimum requirement
(75) in the cycle 1 and 84% of the students have surpassed the minimum requirement, and in the cycle 2, 100%
of the students have surpassed the minimum requirement.
Metacognitive Strategies: Instructional Approaches in Teaching and Learning o...IJAEMSJORNAL
The purpose of the study is to determine the effectiveness of the metacognitive strategies as instructional approaches in teaching and learning of Basic Calculus. A number of 48 students consisting of 24 boys and 24 girls were purposively sampled in this study. Pretest-posttest quasi experimental research design was used which applied t-test and descriptive statistics. Both groups were subject to two instruments that were comprised of problem-solving test (pretest and posttest) and observation guide. Experimental group was taught Basic Calculus using metacognitive strategies while the control group was taught Basic Calculus using traditional teaching strategies. Both groups were subject to a pretest. Class observation was done while the two teaching strategies were applied. In the end, the posttest was administered to both groups to identify the effectiveness of the two teaching strategies. The data gathered were treated using paired sample t-test and independent sample t-test. The results of the study showed that the experimental group had significantly higher posttest scores as compared to control group which proved that metacognitive teaching strategies were more effective in improving the performance and problem-solving skills of the students than the traditional teaching strategies. It was also observed that students who taught using metacognitive strategies helped the students to be extremely engaged in Basic Calculus lessons cognitively, behaviorally, and affectively. The study reveals that the significant increase of the students’ learning engagement in Basic Calculus lessons led the students to a corresponding increase in their posttest scores.
Analysis of Students in Difficulty Solve Problems TwoDimentional Figure Quadr...IOSRJM
This research is a descriptive study that aims to determine the difficulty of concepts, principles difficulty and skill difficulties experienced by students of SMPN 8 Makassar to solve problems, specifically about waking flat rectangle. The subject of this research was the seventh grade students of SMPN 8 Makassar in the academic year 2015/2016 consisting of 5 classes of 200 students, while research subjects were students of class VII SMPN 8 Makassar as many as 35 students. The data collection is done by providing an instrument in the form of a test which consists of 5 items essay in the classroom in order to obtain a score of each kind of level of difficulty with descriptive analysis. The results were obtained percentage score of the degree of difficulty concept was 71.43% categorized as moderate difficulty level, the difficulty level of the principles is 25.71% categorized as very low level of difficulty, the difficulty level of skill 20% categorized the degree of difficulty is very low.
Purpose: This study aims to identify the problem solving abilities possessed by junior high school students. The type of research used is quantitative which uses a research design survey. The sample of this study is 98 students taken based on purposive sampling techniques. This study uses descriptive statistics to analyze the data generated. From the results of the analysis that has been done, it was found that there is a problem solving indicator by students in mathematics which is a indicated by the indicators of planning a solution which has a good category of a 56.1% (55 of 98) students, the indicator of problem solving has a good category of a 56.1% (55 out of 98) students, indicators of a problem solving planning had a good category of a 54.1% (53 of 98) students, and an indicator of understanding a problem had a good category of a 60.2% (59 of 98) students.
This research aims to produce a mathematics module on circle material based on the small group discussion model to improve learning outcomes. The fact is that there are 48% of students who get low mathematics learning outcomes. Another fact is that at the high school level, 62% of students in circle material scored below the minimum completeness criteria. Urgent development research was carried out to produce circular module products. The method in this research is research and development (R&D). The subjects and objects of the research were high schools and there were 32 students. Data collection techniques, material expert instruments, teachers, and student data were also obtained from the results of student pre-tests and post-tests. The data was analyzed by adding up all the assessment scores on the instruments adding up the test results and averaging the individual and classical scores. The results, and assessment of all module components by material experts, mathematics teachers, small group trials, and large group trials were 88.29%, 90.45%, 93.50%, and 92.10% in the very good category. The average score of students' post-test results is 87.50. Conclusion, this circle module can improve student learning outcomes significantly.
Project Based Learning Tools Development on Salt Hydrolysis Materials through...iosrjce
The application of the Project Based Learning in order to compromise the student's centered
learning, because the students are fully engaged in the learning process, from planning to investigative
reporting. The main purpose of this research is to produce the valid and effective Project Based Learning,
included: syllabus, lesson plans, module, project worksheets, evaluation instruments, and research instruments.
The subject of the research is two classes of the eleventh year student of science program in SMA N 1
Pemalang. The research applied 4-D models of Thiagarajan, Semmel and Semmel. The 4-D models. Researcher
has tested the validity and the effectiveness. Developed a learning device called valid if it has been through a
process of expert validation. The device developed effective learning, average scores and the pretest results
posttest then to determine the level of significance of the increase is in the pretest results - posttest t test with
results of 69.07. Observations attitude Data showed an average student with a good attitude to have. The results
of the questionnaire showed no positive response from students so that it can be concluded that the development
of project-based learning through a scientific approach is valid and effective.
This research aimed to determine the effectiveness of the issue, discussion,
establishment, and application (IDEA) learning model in embedding
mathematical concepts understanding. It is a quantitative study with a quasiexperimental
approach. This research was conducted at Malang Islamic
University with students majoring Mathematics education study program
and in their first academic year as the subjects. Subjects were divided into
two group, experimental and control and measured their result using posttest
only control group design. There are six instruments consisting six items
used to measure mathematical concepts understanding. The results
confirmed that H0 is rejected, while Ha is accepted proved by t count
(3.132)>ttable (1.674). It means there is a significant difference between the
of both groups (experimental and control). In addition, the results indicated
that the IDEA learning models is effective to assist students in understanding
mathematical concepts showed by the higher score of experimental groups
than control group. Three factors are involved in order to implement the
IDEA learning model effectively; namely: individual problem-solving
opportunities, active student involvement, and guidance and assistance (from
lecturer) on the IDEA learning model. This research is only limited to
preservice teacher, further research is required in order to implement this
model for mathematics learning at junior and senior high schools’ level.
The previous research result showed that the learning model based on the investigation could increase the students’ critical thinking skills. The aim of this research was to measure the effectiveness of the using of problem-based learning model to increase the students’ critical thinking skills. The research design was quasi-experiment by using post-test only design. The population of this research was the eleventh grade students of science which contained 124 students of SMAN 6 and SMAN 7 Kupang that were chosen randomly. The treatment that was given in this research was problem-based learning model for the experiment class and conventional model for the control class whereas the given materials were the reaction rate. The instrument that was used in this research previously validated by two experts of theory and material. The result of this research showed that the students who studied in experiment class had different critical thinking skills better that the students who studied using conventional model.
A learning program not only aims to make students understand and master what and how things happen, but also provide an understanding of why it happened. Thus, a lesson that emphasizes problem-solving becomes very important to teach. One form of learning that emphasizes the problem solving is to apply systematic approach to problem solving. This is a guide to perform an action that serves to assist a person in solving a problem. Problem solving steps based on systematic approach to problem solving consists of four stages, namely problem analysis, problem solving process planning, calculation operations, and checking answers and interpretation of results. This study is a classroom action research that aims to see the inceasing of student learning outcomes after applied systematic approach to problem solving. The subject of this research is 25 students of class VIIIA MTs Salafiyah Syafi'iyah Tebuireng Jombang. Instruments in this study is a matter of student learning outcomes on the material wake up space. This research was conducted in two cycles because in the second cycle has reached the indicator of success that students achieve the minimal clarity of at least 75%. The results showed that student learning outcomes in the first cycle reached 36% classical completeness, and in the second cycle of classical completeness of 84%. This shows that the application of systematic approach to problem solving can increase student learning outcomes.
The Application of Bruner’s Learning Theory on Teaching Geometric at Smp Nege...IJAEMSJORNAL
This study aimed to find out the activity and learning outcomes of the eight grade mathematics students at SMP N.2 Sipahutar in academic year 2017/2018 on the application of Bruner's theory on the subject of parallel lines. The subject of this research was the eight grade students of SMP N.2 Sipahutar in academic year 2017/2018, while the object of research was the result of learning and students’ activity while learning with the application of Bruner's theory on the subject of parallel line. This research was a descriptive research, and the instrument of data collection used was the test in the form of description and students’ activity observation sheet. Based on the result of data analysis, the results of the research are: (1) The average score of learning result obtained by students is 24.64 with the average grade 77.02 or with the percentage of mastery level of 77.02%. It shows that the students' level of mastery is still classified as moderate. (2) Student's learning completeness: a) Persuasion ability, many students who completed the study were 27 students, while the unfinished study was 4 students, b) Classical absorption, from 31 students there are 27 students or 93.55% completed the study, while the unfinished study is 4 students from 31 students or 6.45%. It shows that classically, the students' learning completeness is achieved; (3) Achievement of specific learning objectives was over 65.0%. (4) Students’ activity, activity level on first learning is equal to 75,71 and the mean of students’ activity reliability level is equal to 82,62%; students’ activity level on the second learning is equal to 88,82 and the mean of students’ activity reliability level is equal to 84,61%, it concluded that there is increase of students’ activity during learning.
THE IMPLEMENTATION OF COOPERATIVE LEARNING BY GIVING INITIAL KNOWLEDGE IN COL...susilosudarman42
Penelitian tentang pemberian pengetahuan awal terhadap proses belajar mengajar melalui model pembelajaran cooperative learning pada materi koloid kimia SMA
It is necessary to develop metacognitive skills-based teaching materials to foster mathematical problem-solving abilities. This research is a research and development. Method used for development using four phases: Design, Construction, Testing, Evaluation and Revision. The criteria used to assess the quality of the learning device refer to the material quality criteria namely: validity, practicality, effectiveness. Subject of trials in this research are 25 students of XI IPA-4 and 25 students of XI IPA-2. Two indicators of this study are metacognitive skills and problem solving. Metacognitive skills are: prediction skills, planning skills, monitoring skills, and evaluation skills. Indicators of problem solving are: understanding the problem, devising a plan, carrying out the plan, and looking back. The data are collected by giving Tests and questionnaires, and through observations. The research instruments are: questionnaire of validation for teaching materials, student questionnaire responses to instructional materials, observation sheet activities of learners, observation sheets of learning implementation and learning management observation sheet. The result of this research is metacognitive skills-based teaching materials are succeeded (fulfilling the criteria of valid, practical, and effective) to emerge students mathematical problem-solving.
Project-Based Learning Guided Lesson Study Improve the Achievement of Learnin...iosrjce
The research impact project-based learning guided lesson study in Seminar Accounting Education
course has been conducted in 2012. The research was focused to improve student achievement of learning
outcomes in Seminar Accounting Education course at Department of Accounting, State University of Malang.
The learning outcome were defined on skill levels, the exploration ability and reviewing issues (contemporary)
in the field of accounting education both conceptual and factual, creating of research proposal, and final grade.
The research approach was classroom action research guided lesson study. The data were analyzed by
comparing student score with the minimum requirement score and the improvement of score from cycle 1 to
cycle 2. The implementation of project-based learning guided lesson study improved the ability of student to
create research proposal. The average score achieved by the students has surpassed the minimum requirement
(75) in the cycle 1 and 84% of the students have surpassed the minimum requirement, and in the cycle 2, 100%
of the students have surpassed the minimum requirement.
Metacognitive Strategies: Instructional Approaches in Teaching and Learning o...IJAEMSJORNAL
The purpose of the study is to determine the effectiveness of the metacognitive strategies as instructional approaches in teaching and learning of Basic Calculus. A number of 48 students consisting of 24 boys and 24 girls were purposively sampled in this study. Pretest-posttest quasi experimental research design was used which applied t-test and descriptive statistics. Both groups were subject to two instruments that were comprised of problem-solving test (pretest and posttest) and observation guide. Experimental group was taught Basic Calculus using metacognitive strategies while the control group was taught Basic Calculus using traditional teaching strategies. Both groups were subject to a pretest. Class observation was done while the two teaching strategies were applied. In the end, the posttest was administered to both groups to identify the effectiveness of the two teaching strategies. The data gathered were treated using paired sample t-test and independent sample t-test. The results of the study showed that the experimental group had significantly higher posttest scores as compared to control group which proved that metacognitive teaching strategies were more effective in improving the performance and problem-solving skills of the students than the traditional teaching strategies. It was also observed that students who taught using metacognitive strategies helped the students to be extremely engaged in Basic Calculus lessons cognitively, behaviorally, and affectively. The study reveals that the significant increase of the students’ learning engagement in Basic Calculus lessons led the students to a corresponding increase in their posttest scores.
Analysis of Students in Difficulty Solve Problems TwoDimentional Figure Quadr...IOSRJM
This research is a descriptive study that aims to determine the difficulty of concepts, principles difficulty and skill difficulties experienced by students of SMPN 8 Makassar to solve problems, specifically about waking flat rectangle. The subject of this research was the seventh grade students of SMPN 8 Makassar in the academic year 2015/2016 consisting of 5 classes of 200 students, while research subjects were students of class VII SMPN 8 Makassar as many as 35 students. The data collection is done by providing an instrument in the form of a test which consists of 5 items essay in the classroom in order to obtain a score of each kind of level of difficulty with descriptive analysis. The results were obtained percentage score of the degree of difficulty concept was 71.43% categorized as moderate difficulty level, the difficulty level of the principles is 25.71% categorized as very low level of difficulty, the difficulty level of skill 20% categorized the degree of difficulty is very low.
Purpose: This study aims to identify the problem solving abilities possessed by junior high school students. The type of research used is quantitative which uses a research design survey. The sample of this study is 98 students taken based on purposive sampling techniques. This study uses descriptive statistics to analyze the data generated. From the results of the analysis that has been done, it was found that there is a problem solving indicator by students in mathematics which is a indicated by the indicators of planning a solution which has a good category of a 56.1% (55 of 98) students, the indicator of problem solving has a good category of a 56.1% (55 out of 98) students, indicators of a problem solving planning had a good category of a 54.1% (53 of 98) students, and an indicator of understanding a problem had a good category of a 60.2% (59 of 98) students.
This research aims to produce a mathematics module on circle material based on the small group discussion model to improve learning outcomes. The fact is that there are 48% of students who get low mathematics learning outcomes. Another fact is that at the high school level, 62% of students in circle material scored below the minimum completeness criteria. Urgent development research was carried out to produce circular module products. The method in this research is research and development (R&D). The subjects and objects of the research were high schools and there were 32 students. Data collection techniques, material expert instruments, teachers, and student data were also obtained from the results of student pre-tests and post-tests. The data was analyzed by adding up all the assessment scores on the instruments adding up the test results and averaging the individual and classical scores. The results, and assessment of all module components by material experts, mathematics teachers, small group trials, and large group trials were 88.29%, 90.45%, 93.50%, and 92.10% in the very good category. The average score of students' post-test results is 87.50. Conclusion, this circle module can improve student learning outcomes significantly.
Project Based Learning Tools Development on Salt Hydrolysis Materials through...iosrjce
The application of the Project Based Learning in order to compromise the student's centered
learning, because the students are fully engaged in the learning process, from planning to investigative
reporting. The main purpose of this research is to produce the valid and effective Project Based Learning,
included: syllabus, lesson plans, module, project worksheets, evaluation instruments, and research instruments.
The subject of the research is two classes of the eleventh year student of science program in SMA N 1
Pemalang. The research applied 4-D models of Thiagarajan, Semmel and Semmel. The 4-D models. Researcher
has tested the validity and the effectiveness. Developed a learning device called valid if it has been through a
process of expert validation. The device developed effective learning, average scores and the pretest results
posttest then to determine the level of significance of the increase is in the pretest results - posttest t test with
results of 69.07. Observations attitude Data showed an average student with a good attitude to have. The results
of the questionnaire showed no positive response from students so that it can be concluded that the development
of project-based learning through a scientific approach is valid and effective.
This research aimed to determine the effectiveness of the issue, discussion,
establishment, and application (IDEA) learning model in embedding
mathematical concepts understanding. It is a quantitative study with a quasiexperimental
approach. This research was conducted at Malang Islamic
University with students majoring Mathematics education study program
and in their first academic year as the subjects. Subjects were divided into
two group, experimental and control and measured their result using posttest
only control group design. There are six instruments consisting six items
used to measure mathematical concepts understanding. The results
confirmed that H0 is rejected, while Ha is accepted proved by t count
(3.132)>ttable (1.674). It means there is a significant difference between the
of both groups (experimental and control). In addition, the results indicated
that the IDEA learning models is effective to assist students in understanding
mathematical concepts showed by the higher score of experimental groups
than control group. Three factors are involved in order to implement the
IDEA learning model effectively; namely: individual problem-solving
opportunities, active student involvement, and guidance and assistance (from
lecturer) on the IDEA learning model. This research is only limited to
preservice teacher, further research is required in order to implement this
model for mathematics learning at junior and senior high schools’ level.
The previous research result showed that the learning model based on the investigation could increase the students’ critical thinking skills. The aim of this research was to measure the effectiveness of the using of problem-based learning model to increase the students’ critical thinking skills. The research design was quasi-experiment by using post-test only design. The population of this research was the eleventh grade students of science which contained 124 students of SMAN 6 and SMAN 7 Kupang that were chosen randomly. The treatment that was given in this research was problem-based learning model for the experiment class and conventional model for the control class whereas the given materials were the reaction rate. The instrument that was used in this research previously validated by two experts of theory and material. The result of this research showed that the students who studied in experiment class had different critical thinking skills better that the students who studied using conventional model.
A learning program not only aims to make students understand and master what and how things happen, but also provide an understanding of why it happened. Thus, a lesson that emphasizes problem-solving becomes very important to teach. One form of learning that emphasizes the problem solving is to apply systematic approach to problem solving. This is a guide to perform an action that serves to assist a person in solving a problem. Problem solving steps based on systematic approach to problem solving consists of four stages, namely problem analysis, problem solving process planning, calculation operations, and checking answers and interpretation of results. This study is a classroom action research that aims to see the inceasing of student learning outcomes after applied systematic approach to problem solving. The subject of this research is 25 students of class VIIIA MTs Salafiyah Syafi'iyah Tebuireng Jombang. Instruments in this study is a matter of student learning outcomes on the material wake up space. This research was conducted in two cycles because in the second cycle has reached the indicator of success that students achieve the minimal clarity of at least 75%. The results showed that student learning outcomes in the first cycle reached 36% classical completeness, and in the second cycle of classical completeness of 84%. This shows that the application of systematic approach to problem solving can increase student learning outcomes.
The Application of Bruner’s Learning Theory on Teaching Geometric at Smp Nege...IJAEMSJORNAL
This study aimed to find out the activity and learning outcomes of the eight grade mathematics students at SMP N.2 Sipahutar in academic year 2017/2018 on the application of Bruner's theory on the subject of parallel lines. The subject of this research was the eight grade students of SMP N.2 Sipahutar in academic year 2017/2018, while the object of research was the result of learning and students’ activity while learning with the application of Bruner's theory on the subject of parallel line. This research was a descriptive research, and the instrument of data collection used was the test in the form of description and students’ activity observation sheet. Based on the result of data analysis, the results of the research are: (1) The average score of learning result obtained by students is 24.64 with the average grade 77.02 or with the percentage of mastery level of 77.02%. It shows that the students' level of mastery is still classified as moderate. (2) Student's learning completeness: a) Persuasion ability, many students who completed the study were 27 students, while the unfinished study was 4 students, b) Classical absorption, from 31 students there are 27 students or 93.55% completed the study, while the unfinished study is 4 students from 31 students or 6.45%. It shows that classically, the students' learning completeness is achieved; (3) Achievement of specific learning objectives was over 65.0%. (4) Students’ activity, activity level on first learning is equal to 75,71 and the mean of students’ activity reliability level is equal to 82,62%; students’ activity level on the second learning is equal to 88,82 and the mean of students’ activity reliability level is equal to 84,61%, it concluded that there is increase of students’ activity during learning.
Developing a Learning Trajectory on Fraction Topics by Using Realistic Mathem...iosrjce
This research and development was purposed at (1) developing a learning trajectory on fraction
topics by using Realistic Mathematics Education approach in Primary School; and (2) determining the validity,
practicality, and the effectiveness of the learning trajectory. The results of this research were (1) a learning
trajectory on fraction topics in the form of Teacher’s Guide Book and Student’s Book. (2) Teachers’ Guide Book
and the Student’s Book of learning trajectory were considered valid, practical and effective after being judged
by experts in Mathematics Educators, Language Educators, Experienced Teachers and an Educationalist.
Based on the research results, it can be concluded that the learning trajectory on Fraction Topics by using
Realistic Mathematics Education Approach can be effectively used to improve the learning effectiveness on
Fraction Topics in Primary School.
This study aims to produce a learning trajectory using the mathematical modeling in helping students to understand the concept of algebraic operations. Therefore, the design research was chosen to meet the research aims and to give in formulating and developing local instructional theory in learning algebraic operations.Learning trajectory designed in the early phases and tested on 34 seven-grade students in SMP N 10 Palembang. Data collection was conducted through observation by recording the learning process that occured in the classroom and students’ group work was evidenced by video and photos. Data was analyzed qualitatively by describing actual learning which happened in pilot experiment and teaching experiment. There are 3 learning activities in the design of this study. These 3 activities are designed based on the steps of the Mathematical Modeling, activity 1 meaning of algebraic expressions, activity 2 addition of algebraic and activity 3 subtraction of algebraic. Based on the result, it can be concluded that activity which has been designed can help the students in learning algebraic operations using mathematical modeling. Used mathematical modeling can help student solve the problems and understand concept are structured using the assumptions and model start they design so gradually developed into formal mathematics.
Problem-based learning (PBL) has been widely applied as an alternative to improve learning outcomes, but it is still little studied in the context of the probability theory course. This study described how implementing the PBL model improves students’ problem-solving and critical thinking skills in probability theory course and evaluates its quality. This design research involved 58 undergraduate students and two probability theory course lecturers from two universities in Indonesia as participants. Data collection used observation to describe PBL implementation, then questionnaire and pretest-posttest to evaluate the quality of the model. This study produced a PBL model for the probability theory course which is implemented through five steps: i) Orienting students on problems; ii) Organizing students to study; iii) Assisting individual and group investigations; iv) Developing and presenting work or solutions; and v) Analyzing and evaluating problem solving processes. Lecturers and students consider that the implementation of PBL is practical. PBL implementation can also improve students’ problem-solving skills and critical thinking in the probability theory course. Thus, implementing PBL can be used as a solution to optimize learning outcomes in the probability theory course.
The Statutory Interpretation of Renewable Energy Based on Syllogism of Britis...AI Publications
The current production for energy consumption generates harmful impacts of carbon dioxide to the environment causing instability to sustainable development goals. The constitutional reforms of British Government serve to be an important means of resolving any encountered incompatibilities to political environment. This study aims to evaluate green economy using developed equation for renewable energy towards political polarization of corporate governance. The Kano Model Assessment is used to measure the equivalency of 1970 Patents Act to UK Intellectual Property tabulating the criteria for the fulfillment of sustainable development goals in respect to the environment, artificial intelligence, and dynamic dichotomy of administrative agencies and presidential restriction, as statutory interpretation development to renewable energy. The constitutional forms of British government satisfy the sustainable development goals needed to fight climate change, advocate healthy ecosystem, promote leadership of magnates, and delegate responsibilities towards green economy. The presidential partisanship must be observed to delineate parties of concerns and execute the government prescriptions in equivalence to the dichotomous relationship of technology and the environment in fulfilling the rights and privileges of all citizens. Hence, the political elites can execute corporate governance towards sustainable development of renewable energy promoting environmental parks and zero emission target of carbon dioxide discharges. The economic theory developed in statutory interpretation for renewable energy serves as a tool to reduce detrimental impacts of carbon dioxide to the environment, mitigate climate change, and produce artefacts of bioenergy and artificial intelligence promoting sustainable development. It is suggested to explore other vulnerabilities of artificial intelligence to prosper economic success.
Enhancement of Aqueous Solubility of Piroxicam Using Solvent Deposition SystemAI Publications
Piroxicam is a non-steroidal anti-inflammatory drug that is characterized by low solubility-high permeability. The present study was designed to improve the dissolution rate of piroxicam at the physiological pH's through its increased solubility by using solvent deposition system.
Analysis of Value Chain of Cow Milk: The Case of Itang Special Woreda, Gambel...AI Publications
Ethiopia has a long and rich history of dairy farming, which was mostly carried out by small and marginal farmers who raised cattle, camels, goats, and sheep, among other species, for milk. Finding the Itang Special Woreda cow milk value chain is the study's main goal. In order to gather primary data, 204 smallholder dairy farmer households were randomly selected, and the market concentration ratio was calculated using 20 traders. Descriptive statistics, econometric models, and rank analysis were used to achieve the above specified goals. Out of all the participants in the milk value chain, producers, cafés, hotels, and dairy cooperatives had the largest gross marketing margins, accounting for 100% of the consumer price in channels I and II, 55% in channels III and V, and 25.5% in channels V. The number of children under five, the number of milking cows owned, the amount of money from non-dairy sources, the frequency of extension service contacts, the amount of milk produced each day, and the availability of market information were found to have an impact on smallholders' involvement in the milk market. Numerous obstacles also limited the amount of milk produced and marketed. The poll claims that general health issues, sickness, predators, and a lack of veterinary care are plaguing farmers. In order to address the issue of milk perishability, the researchers recommended the host community and organization to construct an agro milk processor, renovate the dairy cooperative in the study region, and restructure the current conventional marketing to lower the transaction and cost of milk marketing.
Minds and Machines: Impact of Emotional Intelligence on Investment Decisions ...AI Publications
In the evolving landscape of financial decision-making, this study delves into the intricate relationships among Emotional Intelligence (EI), Artificial Intelligence (AI), and Investment Decisions (ID). By scrutinizing the direct influence of human emotional intelligence on investment choices and elucidating the mediating role of AI in this process, our research seeks to unravel the complex interplay between minds and machines. Through empirical analysis, we reveal that EI not only directly impacts ID but also exerts its influence indirectly through AI-mediated pathways. The findings underscore the pivotal role of emotional awareness in investor decision-making, augmented by the technological capabilities of AI. It suggests that most investors are influenced by the identified emotional intelligence when making investment decisions. Furthermore, AI substantially impacts investors' decision-making process when it comes to investing; nevertheless, AI partially mediates the relationship between emotional intelligence and investment decisions. This nuanced understanding provides valuable insights for financial practitioners, policymakers, and researchers, emphasizing the need for holistic strategies that integrate emotional and technological dimensions in navigating the intricacies of modern investment landscapes. As the synergy between human intuition and artificial intelligence becomes increasingly integral to financial decision-making, this study contributes to the ongoing discourse on the symbiotic relationship between minds and machines in investments.0
Bronchopulmonary cancers are common cancers with a poor prognosis. It is the leading cause of death by cancer in Algeria and in the world. Behind this unfavorable prognosis hides numerous disparities according to age, sex, and exposure to risk factors, ranking 4th among incident cancers and developing countries including Algeria, all sexes combined. It ranks 2nd cancers in men and 3rd among women. Whatever the age observed, the incidence of this cancer is higher in men than in women, however the gap is narrowing to the detriment of the latter. The results of scientific research agree to relate trends in incidence and mortality rates to tobacco consumption, including passive smoking. Furthermore, other risk factors are mentioned such as exposure to asbestos in the workplace or to radon for the general population, or even genetic predisposition. However, the weight of these etiological and/or predisposing factors is in no way comparable to that of tobacco in the genesis of lung cancer and the resulting mortality. We provide a literature review in our article on the descriptive and analytical epidemiology of lung cancer.
Further analysis on Organic agriculture and organic farming in case of Thaila...AI Publications
The objective of this paper is to present Further analysis on Organic agriculture and organic farming in case of Thailand agriculture and enhancing farmer productivity. In view of the demand for organic fertilizers, efforts should also be made to enhance and to develop more effective of compost, bio-fertilizer, and bio-pesticides currently used by farmers. Likewise, emphasis should also be laid on the cultivation of legumes and other crops that can enhance the fertility of the soil, as practiced by farmers in many developing countries to fertilize their lands. On the other hand, most of the farmers who practice this farm system found that they are adopting a number of SLMs and interested in joining the meeting or training to gain more and more knowledge.
Current Changes in the Role of Agriculture and Agri-Farming Structures in Tha...AI Publications
The objective os this study is to present Current Changes in the Role of Agriculture and Agri-Farming Structures in Thailand and Vietnam with SLM practices. Farmer’s adoption and investment in SLM is a key for controlling land degradation, enhancing the well-being of society, and ensuring the optimal use of land resources for the benefit of present and future generations (World Bank, 2006; FAO, 2018). And agriculture remains an essential element of lives of many farmers in term of the strong cultural and symbolic values that attach current working generation to do and to spend time for it but not intern of income generating.
Growth, Yield and Economic Advantage of Onion (Allium cepa L.) Varieties in R...AI Publications
Haphazard and low soil fertility, low yielding verities and poor agronomic practices are among the major factors constraining onion production in the central rift valley of Ethiopia. Therefore, a field experiment was conducted in East Showa Zone of Adami Tulu Jido Combolcha district in central rift valley areas at ziway from October 2021 to April 2022 to identify appropriate rate of NPSB fertilizer and planting pattern of onion varieties. The experiment was laid out in split plot design of factorial arrangement in three replications. The main effect of NPSB blended fertilizer rates and varieties (red coach and red king) significantly (p<0.01) influenced plant height, leaf length, leaf diameter, leaf number and fresh leaf weight, shoot dry matter per plant, and harvest index. Total dry biomass, bulb diameter, neck diameter, average fresh bulb weight, bulb dry matter, marketable bulb yield, and total bulb yield were significantly (p<0.01) influenced only by the main effect of NPSB blended fertilizer rates. In addition, unmarketable bulb yield was statistically significantly affected (p≥0.05) by the blended fertilizer rates and planting pattern. Moreover, days to 90% maturity of onion was affected by the main factor of NPSB fertilizer rate, variety and planting pattern. The non-fertilized plants in the control treatment were inferior in all parameters except unmarketable bulb yield and harvest index. Significantly higher marketable bulb yield (41 t ha-1) and total bulb yield (41.33 t ha-1) was recorded from 300 kg ha-1 NPSB blended fertilizer rate applied. Double row planting method and hybrid red coach onion variety had also gave higher growth and yields. The study revealed that the highest net benefit of Birr, 878,894 with lest cost of Birr 148,006 by the combinations of 150 kg blended NPSB ha-1 with double row planting method (40cm*20cm*7cm) and red coach variety which can be recommendable for higher marketable bulb yield and economic return of hybrid onion for small scale farmers in the study area. Also, for resource full producers (investors), highest net benefit of Birr 1,205,372 with higher cost (159,628 Birr) by application of 300 kg NPSB ha-1 is recommended as a second option. However, the research should be replicated both in season and areas to more verify the recommendations.
Evaluation of In-vitro neuroprotective effect of Ethanolic extract of Canariu...AI Publications
The ethanolic extract of canarium solomonense leaves (ecsl) was studied for its neuroprotective activity. The neuroprotective activity of ECSL was found to have a significant impact on neuronal cell death triggered by hydrogen peroxide (MTT assay) in human SH-SY5Y neuroblastoma cells. Scopolamine, a muscarinic receptor blocker, is frequently used to induce cognitive impairment in laboratory animals. Injections of scopolamine influence multiple cognitive functions, including motor function, short-term memory, and attention. Using the Morris water maze, the Y maze, and the passive avoidance paradigm, memory enhancing activity in scopolamine-induced amnesic rats was evaluated. Using the Morris water maze, the Y maze, and the passive avoidance paradigm, ECSL was found to have a substantial effect on the memory of scopolamine- induced amnesic rats. Our experimental data indicated that ECSL can reverse scopolamine induced amnesia and assist with memory issues.
The goal of neuroprotection is to shield neurons against damage, whether that damage is caused by environmental factors, pathogens, or neurodegenerative illnesses. Inhibiting protein-based deposit buildup, oxidative stress, and neuroinflammation, as well as rectifying abnormalities of neurotransmitters like dopamine and acetylcholine, are some of the ways in which medicinal herbs have neuroprotective effects [1-3]. This review will focus on the ways in which medicinal herbs may protect neurons.
A phytochemical and pharmacological review on canarium solomonenseAI Publications
The genus Canarium L. consists of 75 species of aromatic trees which are found in the rainforests of tropical Asia, Africa and the Pacific. The medicinal uses, botany, chemical constituents and pharmacological activities are now reviewed. Various compounds are tabulated according to their classes their structures are given. Traditionally canarium solomonense have been used to treat a broad array of illnesses. Pharmacological actions for canarium solomonense as discussed in this review include antibacterial, antimicrobial, antioxidant, anti-inflammatory, hepatoprotective and antitumor activity.
Influences of Digital Marketing in the Buying Decisions of College Students i...AI Publications
This research investigates the influence of digital marketing channels on purchasing decisions among college students in Ramanathapuram District. The study highlights that social media marketing, online advertising, and mobile marketing exhibit substantial positive effects on purchase decisions. However, email marketing's impact appears to be more complex. Moreover, the study explores how demographic variables like gender and academic level shape these effects. Notably, freshman students display varying susceptibility to specific digital marketing messages compared to their junior, senior, or graduate counterparts. These findings offer crucial insights for marketers aiming to tailor their strategies effectively to the preferences and behaviors of college students. By understanding the differential impacts of various digital marketing channels and considering demographic nuances, marketers can refine their approaches, optimize engagement, and ultimately enhance the effectiveness of their campaigns in targeting this demographic.
A Study on Performance of the Karnataka State Cooperative Agriculture & Rural...AI Publications
The Karnataka State Co-operative Agriculture and Rural Development Bank Limited is the apex bank of all the primary co-operative agriculture and rural development banks in the state. All the PCARD Banks in the state are affiliated to it. The KSCARD Bank provides financial accommodation to the PCARD Banks for their lending operations. In order to quick sanction and disbursement of loans and supervision over the PCARD Banks the KSCARD Bank has opened district level branches. Bank has established Women Development Cell to promote entrepreneurship among women in 2005. The Bank is identifying women borrowers in the rural areas by assigning suitable projects to motivate their self-confidence to lead independent life. Progress made in financing women entrepreneurs women.
Breast hamartoma is a rare, well-circumscribed, benign lesion made up of a variable quantity of glandular, adipose and fibrous tissue. This is a lesion that can affect women at any age from puberty. With the increasingly frequent use of imaging methods such as mammography and ultrasound as well as breast biopsy, cases of hamartoma diagnosed are increasing. The diagnosis of these lesions is made by mammography. The histological and radiological aspects are variable and depend on its adipose tissue content. The identification of these lesions is important in order to avoid surgical excisions. We report radio-clinical and pathological records of breast hamartoma.
A retrospective study on ovarian cancer with a median follow-up of 36 months ...AI Publications
Ovarian cancer is relatively common but serious and has a poor prognosis. The aim of this study is to highlight the epidemiological, diagnostic, therapeutic and evolutionary aspects of this malignant pathology managed at the Bejaia university hospital center. This is a retrospective and descriptive study over a period of 3 years (2019 - 2022) carried out on 20 patients who developed ovarian cancer. The average age of the patients was 50 years old, 53.23% of whom were over 45 years old. The CA-125 blood test was positive in 18 out of 20 patients. The tumors were discovered on ultrasound in 87.10% of cases and at laparotomy in 12.90%. Total hysterectomy with bilateral adnexectomy was the most performed procedure (64.52%). The early postoperative course was simple. 15 patients underwent second look surgery (16.13%) for locoregional recurrences. Epithelial tumors were the most frequent histological type (93.55%), including 79% in the advanced stage ( IIIc -IV) and 21% in the early stage (Ia- Ib ). Adjuvant chemotherapy was administered in 80% of patients. With a median follow-up of 36 months, 2 patients were lost to follow-up. The evolution was favorable in 27.42% and in 25.81% deaths occurred late postoperatively. Ovarian cancer is not common but serious given the advanced stages and the high rate of late postoperative deaths which were largely observed in patients deprived of adequate neoadjuvant or adjuvant chemotherapy.
More analysis on environment protection and sustainable agriculture - A case ...AI Publications
This study presents a case of tea and coffee crops , esp. environment protection and sustainable agriculture in Son La and Thai Nguyen of Vietnam. Research results show us that The process of having an agricultural product goes through many steps such as planting, planning, harvesting, packing, transporting, storing and distributing. - The State adopts policies to encourage innovation of agricultural production models and methods towards sustainability, adapting to climate change, saving water, and limiting the use of inorganic fertilizers and pesticides. chemicals and products for environmental treatment in agriculture; develop environmentally friendly agricultural models. Our research limitation is that we can expand for other crops, industries and markets as well.
Assessment of Growth and Yield Performance of Twelve Different Rice Varieties...AI Publications
The present investigation entitled “Assessment of growth and yield performance of twelve different rice varieties under north Konkan coastal zone of Maharashtra” was carried out during the kharif season of the year 2021 and 2022 on the field of ASPEE, Agricultural Research and Development Foundation, Tansa Farm, At Nare, Taluka Wada, District Palghar, Maharashtra, India. The experiment was laid out in Randomized Block Design (RBD). The twelve varieties namely Zini, Jaya, Dandi, Rahghudya, Govindbhog, Dangi, Gurjari, VNR-7, VNR-8, VNR-9, Karjat-3, and Karjat-5 were replicated thrice. The plant height (cm), number of tillers per plant, number of panicles per plant, number of panicles (m²), and length of panicle (cm) were noted to the maximum with cv. “VNR-7”. The highest number of seeds per panicle, test weight (gm), grain yield (q/ha), and straw yield (q/ha) were recorded with the cv. “VNR-7”. While the lowest number of days to 50% flowering was also recorded with cv. “VNR-7” during the year 2021 and 2022.
Cultivating Proactive Cybersecurity Culture among IT Professional to Combat E...AI Publications
In the current digital landscape, cybercriminals continually evolve their techniques to execute successful attacks on businesses, thus posing a great challenge to information technology (IT) professionals. While traditional cybersecurity approaches like layered defense and reactive security have helped IT professionals cope with traditional threats, they are ineffective in dealing with evolving cyberattacks. This paper focuses on the need for a proactive cybersecurity culture among IT professionals to enable them combat evolving threats. The paper emphasis that building a proactive security approach and culture can help among IT professionals anticipate, identify, and mitigate latent threats prior to them exploiting existing vulnerabilities. This paper also points out that as IT professionals use reactive security when dealing with traditional attacks, they can use it collaboratively with proactive security to effectively protect their networks, data, and systems and avoid heavy costs of dealing with cyberattack’s aftermaths and business recovery.
The Impacts of Viral Hepatitis on Liver Enzymes and BilrubinAI Publications
Viral hepatitis is an infection that causes liver inflammation and damage. Several different viruses cause hepatitis, including hepatitis A, B, C, D, and E. The hepatitis A and E viruses typically cause acute infections. The hepatitis B, C, and D viruses can cause acute and chronic infections. Hepatitis A causes only acute infection and typically gets better without treatment after a few weeks. The hepatitis A virus spreads through contact with an infected person’s stool. Protection by getting the hepatitis A vaccine. Hepatitis E is typically an acute infection that gets better without treatment after several weeks. Some types of hepatitis E virus are spread by drinking water contaminated by an infected person’s stool. Other types are spread by eating undercooked pork or wild game. Hepatitis B can cause acute or chronic infection. Recommendation for screening for hepatitis B in pregnant women or in those with a high chance of being infected. Protection from hepatitis B by getting the hepatitis B vaccine. Hepatitis C can cause acute or chronic infection. Doctors usually recommend one-time screening of all adults ages 18 to 79 for hepatitis C. Early diagnosis and treatment can prevent liver damage. The hepatitis D virus is unusual because it can only infect those who have a hepatitis B virus infection. A coinfection occurs when both hepatitis D and hepatitis B infections at the same time. A superinfection occurs already have chronic hepatitis B and then become infected with hepatitis D. The aim of this study is to find the effect of each type of viral hepatitis on the bilirubin (TB , DSB) , and liver enzymes; AST, ALT, ALP,GGT among viral hepatitis patients. 200 patients were selected from the viral hepatitis units in the central public health laboratory in Baghdad city, all the chosen cases were confirmed as a positive samples , they are classified into four equal group each with fifty individual and with a single serological viral hepatitis type either; anti-HAV( IgM ) , HBs Ag , anti-HCV ,or anti-HEV(IgM ). All patients were tested for; serum bilirubin ( TB ,D.SB ) , AST , ALT , ALP , GGT. Another fifty quite healthy and normal person was selected as a control group for comparison. . Liver enzymes and bilirubin changes are more pronounced in HAV, HEV than HCV and HBVAST and ALT lack some sensitivity in detecting HCV ,HBV and mild elevations of ALT or AST in asymptomatic patients can be evaluated efficiently by considering ,hepatitis B, hepatitis C. ALT is generally a more sensitive indicator of acute liver cell damage than AST, It is relatively specific for hepatocyte necrosis with a marked elevations in viral hepatitis. Liver enzymes and bilirubin changes are more pronounced in HAV, HEV than HCV and HBV.AST and ALT lack some sensitivity in detecting HCV ,HBV and mild elevations of ALT or AST in asymptomatic patients can be evaluated efficiently by considering ,hepatitis B, hepatitis C. ALT is generally a more sensitive indicator of acute liver
Determinants of Women Empowerment in Bishoftu Town; Oromia Regional State of ...AI Publications
The purpose of this study was to determine the status of women's empowerment and its determinants using women's asset endowment and decision-making potential as indicators. To determine representative sample size, this study used a two-stage sampling technique, and 122 sample respondents were selected at random. To analyze the data in this study, descriptive statistics and a probit model were used. The average women's empowerment index was 0.41, indicating a relatively lower status of women's empowerment in the study area. According to the study's findings, only 40.9% of women were empowered, while the remaining 59.1% were not. The probit model results show that women's access to the media, women's income, and their husbands' education status have a significant and positive impact on the status of women's empowerment, while the family size of households has a negative impact. As a result, it is important to enhance women's access to the media and income, promote family planning and contraception, and improve men's educational status in order to improve the status of women's empowerment.
(May 29th, 2024) Advancements in Intravital Microscopy- Insights for Preclini...Scintica Instrumentation
Intravital microscopy (IVM) is a powerful tool utilized to study cellular behavior over time and space in vivo. Much of our understanding of cell biology has been accomplished using various in vitro and ex vivo methods; however, these studies do not necessarily reflect the natural dynamics of biological processes. Unlike traditional cell culture or fixed tissue imaging, IVM allows for the ultra-fast high-resolution imaging of cellular processes over time and space and were studied in its natural environment. Real-time visualization of biological processes in the context of an intact organism helps maintain physiological relevance and provide insights into the progression of disease, response to treatments or developmental processes.
In this webinar we give an overview of advanced applications of the IVM system in preclinical research. IVIM technology is a provider of all-in-one intravital microscopy systems and solutions optimized for in vivo imaging of live animal models at sub-micron resolution. The system’s unique features and user-friendly software enables researchers to probe fast dynamic biological processes such as immune cell tracking, cell-cell interaction as well as vascularization and tumor metastasis with exceptional detail. This webinar will also give an overview of IVM being utilized in drug development, offering a view into the intricate interaction between drugs/nanoparticles and tissues in vivo and allows for the evaluation of therapeutic intervention in a variety of tissues and organs. This interdisciplinary collaboration continues to drive the advancements of novel therapeutic strategies.
A brief information about the SCOP protein database used in bioinformatics.
The Structural Classification of Proteins (SCOP) database is a comprehensive and authoritative resource for the structural and evolutionary relationships of proteins. It provides a detailed and curated classification of protein structures, grouping them into families, superfamilies, and folds based on their structural and sequence similarities.
Introduction:
RNA interference (RNAi) or Post-Transcriptional Gene Silencing (PTGS) is an important biological process for modulating eukaryotic gene expression.
It is highly conserved process of posttranscriptional gene silencing by which double stranded RNA (dsRNA) causes sequence-specific degradation of mRNA sequences.
dsRNA-induced gene silencing (RNAi) is reported in a wide range of eukaryotes ranging from worms, insects, mammals and plants.
This process mediates resistance to both endogenous parasitic and exogenous pathogenic nucleic acids, and regulates the expression of protein-coding genes.
What are small ncRNAs?
micro RNA (miRNA)
short interfering RNA (siRNA)
Properties of small non-coding RNA:
Involved in silencing mRNA transcripts.
Called “small” because they are usually only about 21-24 nucleotides long.
Synthesized by first cutting up longer precursor sequences (like the 61nt one that Lee discovered).
Silence an mRNA by base pairing with some sequence on the mRNA.
Discovery of siRNA?
The first small RNA:
In 1993 Rosalind Lee (Victor Ambros lab) was studying a non- coding gene in C. elegans, lin-4, that was involved in silencing of another gene, lin-14, at the appropriate time in the
development of the worm C. elegans.
Two small transcripts of lin-4 (22nt and 61nt) were found to be complementary to a sequence in the 3' UTR of lin-14.
Because lin-4 encoded no protein, she deduced that it must be these transcripts that are causing the silencing by RNA-RNA interactions.
Types of RNAi ( non coding RNA)
MiRNA
Length (23-25 nt)
Trans acting
Binds with target MRNA in mismatch
Translation inhibition
Si RNA
Length 21 nt.
Cis acting
Bind with target Mrna in perfect complementary sequence
Piwi-RNA
Length ; 25 to 36 nt.
Expressed in Germ Cells
Regulates trnasposomes activity
MECHANISM OF RNAI:
First the double-stranded RNA teams up with a protein complex named Dicer, which cuts the long RNA into short pieces.
Then another protein complex called RISC (RNA-induced silencing complex) discards one of the two RNA strands.
The RISC-docked, single-stranded RNA then pairs with the homologous mRNA and destroys it.
THE RISC COMPLEX:
RISC is large(>500kD) RNA multi- protein Binding complex which triggers MRNA degradation in response to MRNA
Unwinding of double stranded Si RNA by ATP independent Helicase
Active component of RISC is Ago proteins( ENDONUCLEASE) which cleave target MRNA.
DICER: endonuclease (RNase Family III)
Argonaute: Central Component of the RNA-Induced Silencing Complex (RISC)
One strand of the dsRNA produced by Dicer is retained in the RISC complex in association with Argonaute
ARGONAUTE PROTEIN :
1.PAZ(PIWI/Argonaute/ Zwille)- Recognition of target MRNA
2.PIWI (p-element induced wimpy Testis)- breaks Phosphodiester bond of mRNA.)RNAse H activity.
MiRNA:
The Double-stranded RNAs are naturally produced in eukaryotic cells during development, and they have a key role in regulating gene expression .
Seminar of U.V. Spectroscopy by SAMIR PANDASAMIR PANDA
Spectroscopy is a branch of science dealing the study of interaction of electromagnetic radiation with matter.
Ultraviolet-visible spectroscopy refers to absorption spectroscopy or reflect spectroscopy in the UV-VIS spectral region.
Ultraviolet-visible spectroscopy is an analytical method that can measure the amount of light received by the analyte.
THE IMPORTANCE OF MARTIAN ATMOSPHERE SAMPLE RETURN.Sérgio Sacani
The return of a sample of near-surface atmosphere from Mars would facilitate answers to several first-order science questions surrounding the formation and evolution of the planet. One of the important aspects of terrestrial planet formation in general is the role that primary atmospheres played in influencing the chemistry and structure of the planets and their antecedents. Studies of the martian atmosphere can be used to investigate the role of a primary atmosphere in its history. Atmosphere samples would also inform our understanding of the near-surface chemistry of the planet, and ultimately the prospects for life. High-precision isotopic analyses of constituent gases are needed to address these questions, requiring that the analyses are made on returned samples rather than in situ.
This pdf is about the Schizophrenia.
For more details visit on YouTube; @SELF-EXPLANATORY;
https://www.youtube.com/channel/UCAiarMZDNhe1A3Rnpr_WkzA/videos
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Professional air quality monitoring systems provide immediate, on-site data for analysis, compliance, and decision-making.
Monitor common gases, weather parameters, particulates.
Richard's entangled aventures in wonderlandRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
The Effectiveness of Problem based learning Model to improve the understanding Concept of Students prospective in Fractional Count
1. International journal of Chemistry, Mathematics and Physics (IJCMP)
[Vol-4, Issue-1, Jan-Feb, 2020]
https://dx.doi.org/10.22161/ijcmp.4.1.2
ISSN: 2456-866X
http://www.aipublications.com/ijcmp/ Page | 4
Open Access
The Effectiveness of Problem based learning
Model to improve the understanding Concept of
Students prospective in Fractional Count
Juli Antasari Sinaga
Dosen Prodi Pendidikan Matematika FKIP Universitas HKBP Nommensen
Email: julysinaga654@gmail.com
Abstract— The aim of the study is to find out the ability to understand mathematical concepts of teachers
prospective in Mathematics Education Program FKIP University Nommensen in the fractional count operations
material. This research is a descriptive study with the aim of the study describing the effectiveness of the Problem
Based Learning Model. The results of the second trial described that the effectiveness of the Problem Based
Learning Model was concluded: (i) the percentage of the students who understood the concept at least 85.29% or 29
students out of 34 students who took the test. (ii) the achievement of the ideal percentage of time for each category
of student activity, (iii) the average of the lecturer ability to manage learning is 3.54, including the good category,
(iv) student responses to the components and learning activities are positive is 90%.
Keywords— Learning Model, Problem, Concept, Students, Fractional.
I. INTRODUCTION
Mathematics lessons always get the number one attention,
this is evidenced by the emergence of mathematics in level of
education starting from kindergarten to the level of tertiary
education. In mathematics concepts arranged in a
hierarchical, structured, logical, and systematic manner
starting from the simplest concepts to more complex
concepts, therefore to learn mathematics, the previous
concepts that become prerequisites really be mastered in
order to understand the concepts. But in reality, concepts in
mathematics are often not fully mastered by students. This is
caused by the weakness of the learning process which
focuses on the mastery of concepts, often concepts that
should be formed based on their own understanding are
actually the concepts that are informed. For example, when
sitting in elementary school, the teacher informs us when
carrying out a calculation operation on fractions, we are
reminded that the operation can be changed to operation
times with the condition that the fraction to the right of the
times the numerator must be changed to the denominator and
vice versa, without knowing the reason why the process. This
is one example of the cases that occur about learning
concepts in the process of learning mathematics. So, The
understanding is always carried over until the student sits on
the lecture bench. I proved this research by finding some
seventh Grade students of Mathematics Education Study
Program students at FKIP HKBP University Nommensen
Pematangsiantar in Academic year 2018/2019 had low
mastery of the concept in fraction counting operations. When
I entered Elementary School Mathematics Capita Selekta
lectures, I found that most students if asked what the
meaning of ,
5
3
,
2
1
or
3
1
2 they can’t do the test. In other
hand
6
7
3
2
2
1
, or
4
1
2
1
2
1
2:
2
1
x , they are also unable to
provide a logical explanation of the problem, the students
who are really not able to provide solutions to the problems
of calculating fraction operations. Even though the fractional
material always has a relationship with various other
materials.
II. REVIEW OF LITERATURE
Problem based learning Model is a emphasize on the
cognitive aspects of students, learning is centered on students
and always begins with giving a real problem to find a
concept. The focus of teaching not clearly on students do but
they think when doing the learning. The teacher's role in
2. International journal of Chemistry, Mathematics and Physics (IJCMP)
[Vol-4, Issue-1, Jan-Feb, 2020]
https://dx.doi.org/10.22161/ijcmp.4.1.2
ISSN: 2456-866X
http://www.aipublications.com/ijcmp/ Page | 5
Open Access
learning sometimes involves presenting and explaining
things to students, but in essence in learning based on
problems the teacher acts as a guide and facilitator students
learn to think and solve problems in their own way. The
stages applying the learning model based on the problem are
used the stages proposed by Ibrahim and Nur (2000: 13),
namely: 1) Students' orientation to the problem; 2)
Organizing students for learning; 3) Guiding individual and
group investigations; 4) Develop and present the work; 5)
Analyze and evaluate the problem solving process. Effective
learning requires the teacher to know how students perceive
the phenomenon that is the object of learning or in other
words how the child's ideas about the topic will be discussed
before the topic begins. Learning is developed from existing
ideas that may be through simple steps, and ends with ideas
that have been modified. Furthermore, teaching is to be
effective when achieving the desired goals, both in terms of
learning objectives and maximum student achievement
(mastery of content and performance). Teaching is effective
when achieving the desired goals, both in terms of learning
objectives and maximum student achievement, so that which
is an indicator of the effectiveness of learning in the form of:
1. Students have understood the concept about 80% of
students who take the test and the ability to understand
the concept of a minimum of moderate (getting more
than or equal to 2.66 or a minimum of B-).
2. The Achievement of the ideal percentage of student
activity time specified.
3. The achievement of the teacher's ability to manage
learning at least good enough,
4. At least 80% of the subjects studied (for each trial)
provide a positive response to the components and
learning activities.
Learning activities are forms of activities carried out by
students during the learning process. Student learning
activities examined in this study are: 1) listening, paying
attention to teacher explanations, 2) reading / understanding
contextual problems in LAS, 3) solving problems / finding
ways and answers to problems, 4) writing problem solving,
summarizing and concluding a procedures / concepts, 5)
displaying results / presentations, 6) discussing / asking
friends or teachers, 7) drawing conclusions of a procedure /
concept, 8) recording things that are relevant to teaching and
learning, 9) student behavior with teaching and learning
activities.
III. RESEARCH METHODOLOGY
The collected data analyzed through descriptive qualitative
method, Research design is applied to describe the
effectiveness the problem based learning model to improve
the ability to understand the concepts of the Seventh grade
students of Mathematics Education Study Program FKIP
HKBP Nommensen University on fraction count operations
material. This research was conducted at the Mathematics
Education Study Program FKIP odd grade in Academic year
2018/2019.
IV. FINDING AND DISCUSSION
The Analysis of Research Data on Trial I, The results of the
pre-test and post-test ability in understanding the
mathematical concepts of Seventh grade students in Group
A.
Categories Pre-test Post-test
The Highest Score 2,08 3,56
The Lowest Score 0,44 1,36
Average 1,07 2,73
Based on the average value above, it was concluded that the
ability to understand mathematical concepts of students
increased by 1.66. The Level of Mathematical Concept
Understanding Ability in Seventh Grade Student in Group A
based on the results of the pretest and posttest
Score
Pre-test Post-test
Students Number Percentage Predicate Students Number Percentage Predicate
0,00 < Score≤ 1,00 16 47,06% D 0 0% D
1,00 < Score ≤ 1,33 10 29,41% D+
0 0% D+
1,33 < Score ≤ 1,66 5 14,71% C- 2 5,88% C-
1,66 < Score ≤ 2,00 2 5,88% C 3 8,82% C
2,00 < Score ≤ 2,33 1 2,94% C+
4 11,76% C+
2,33 < Score ≤ 2,66 0 0% B- 2 5,88% B-
2,66 < Score ≤ 3,00 0 0% B 10 29,41% B
3. International journal of Chemistry, Mathematics and Physics (IJCMP)
[Vol-4, Issue-1, Jan-Feb, 2020]
https://dx.doi.org/10.22161/ijcmp.4.1.2
ISSN: 2456-866X
http://www.aipublications.com/ijcmp/ Page | 6
Open Access
Score
Pre-test Post-test
Students Number Percentage Predicate Students Number Percentage Predicate
3,00 < Score ≤ 3,33 0 0% B+
8 23,53% B+
3,33 < Score ≤ 3,66 0 0% A- 1 2,94% A-
3,66 < Score ≤ 4,00 0 0% A 4 11,76% A
The results of the pretest ability to understand the concepts of
students, show that students who get a minimum grade of B-.
Furthermore, the results of the posttest showed that the
number of students who had understood the concept of
fraction counting operations or students who received a
minimum value of B- was 25 people (73.52%) out of the 34
students who understand the ability of mathematical
concepts. This percentage is referred to the established
criteria, it can be concluded that the percentage of students
who have understood the concept has not been reached.
The Results of Data analysis of student activity
The results of observations student activities during teaching
and learning activities (KBM) are expressed as a percentage.
Number Student Activity Category
The Everage of
PWI (%)
The Tolerance
Limits of PWI (%)
1 Paying attention / listen to the explanation of the lecturer /
friend.
20,16 9≤P≤19
2 Reading, understanding contextual issues in a Worksheet. 17,76 6≤P≤16
3 Solving problems / finding ways and answers to the problems. 28,96 33≤P≤43
4 Discussing / asking friends or lecturers. 20,04 19≤P≤29
5 Drawing conclusions from a procedure or concept. 11,62 8≤P≤18
6 Student behavior that is not relevant to KBK. 1,46 0≤P≤5
Total 100
The level of active activity of students who find the tolerance
limit is discussing or asking friends / lecturers, and drawing
conclusions about a procedure or concept. While those who
do not find the tolerance limit are: listening / paying attention
to the explanation of the lecturer / friend, reading /
understanding the problems in the Worksheet, and solving
problems and finding ways or answers to problems. Based on
the explanation above, from 3 categories of active student
observation activities, there are 2 categories of observations
that find the time tolerance limit and 1 category of
observation that does not find the specified tolerance limits.
The Teacher's Ability to Manage Learning
Overall the average value of ecturers ability to manage
learning is 3.02. The value is referred to the established
criteria, it can be concluded that the ability of lecturers to
manage learning is quite good.
The Student Responses in Learning Devices
Student responses to all aspects of learning components and
activities above is 80%. The results of analysis are referred to
the established criteria, it can be concluded that students'
responses to the components and learning activities by using
learning tools oriented towards PBM models are positive.
Based on the results of the trial I explained that the criteria
for the effectiveness of a learning by using a learning model
based on the problem has not been achieved properly so that
it is necessary continue test II.
The Analysis of Trial Data II
The Trial II was conducted on students Seventh grade of
Group B with 34 subjects. The results of the pre-test and
post-test ability of students' understanding of mathematical
concepts in the second trial
Categories Pre-test Post-tes
The Highest Score 2,04 3,84
The Lowest Score 0,28 2,12
Average 1,12 3,07
Based on the average value above, it was concluded that the
ability to understand mathematical concepts of students
increased is 1.95. The Level of Achievement Ability to
4. International journal of Chemistry, Mathematics and Physics (IJCMP)
[Vol-4, Issue-1, Jan-Feb, 2020]
https://dx.doi.org/10.22161/ijcmp.4.1.2
ISSN: 2456-866X
http://www.aipublications.com/ijcmp/ Page | 7
Open Access
Understand Mathematics Concepts of Seventh Grade Students in Group B on Pre-test and Post-test Results
Score
Pre-test Post-test
Students Number Percentage Predicate Students Number Percentage Predicate
0,00 < Score ≤ 1,00 11 32,35% D 0 0% D
1,00 < Score ≤ 1,33 10 29,41% D+
0 0% D+
1,33 < Score ≤ 1,66 10 29,41% C- 0 0% C-
1,66 < Score ≤ 2,00 1 2,94% C 0 0% C
2,00 < Score ≤ 2,33 2 5,88% C+
5 14,71% C+
2,33 < Score ≤ 2,66 0 0% B- 2 5,88% B-
2,66 < Score ≤ 3,00 0 0% B 8 23,53% B
3,00 < Score ≤ 3,33 0 0% B+
7 20,58% B+
3,33 < Score ≤ 3,66 0 0% A- 8 23,53% A-
3,66 < Score ≤ 4,00 0 0% A 4 11,76% A
The results of the students' concept understanding ability
above show that students who get a minimum grade of B-.
Furthermore, the results of the post-test showed that the
number of students who received a minimum grade of B-
was 29 people (85.29%) out of the 34 students who took the
post-test ability to understand mathematical concepts. The
percentage is referred to established criteria, it can be
concluded that the percentage of students who have
understood the concept has been reached. A comparison of
the results post-test of students who have understood the
concept of fractions in trial I and trial II:
The Concept of Fractional Operations
Post-test
Percentage (%)
Students who have
understood the concept
Trial I 73,53
Trial II 85,29
Based on table above, the percentage of students who have
understood the concept results of the first post-test was
73.53% and in the second trial was 85.29%. The percentage
of students who have understood the concept of fractions has
increased by 11.76%.
The Results of Data analysis of student activity
The results of Student observations activities during teaching
and learning activities (KBM) are expressed as a percentage.
The observations on trial II are presented in the table below:
Number Student Activity Category
The
Everage
of PWI
(%)
The Tolerance
Limits of PWI
(%)
1 Paying attention / listen to the explanation of the lecturer / friend. 10,16 9≤P≤19
2 Reading, understanding contextual issues in a Worksheet. 13,19 6≤P≤16
3 Solving problems / finding ways and answers to the problems. 34,64 33≤P≤43
4 Discussing / asking friends or lecturers. 25,68 19≤P≤29
5 Drawing conclusions from a procedure or concept. 15,79 8≤P≤18
6 Student behavior that is not relevant to KBK. 0,83 0≤P≤5
Total 100
5. International journal of Chemistry, Mathematics and Physics (IJCMP)
[Vol-4, Issue-1, Jan-Feb, 2020]
https://dx.doi.org/10.22161/ijcmp.4.1.2
ISSN: 2456-866X
http://www.aipublications.com/ijcmp/ Page | 8
Open Access
The average percentage of student activity time in each
category is referred to the criteria for determining the
achievement of the ideal percentage of student activity time,
so it can be concluded that the percentage of student activity
achievement of the ideal percentage of time or is at the time
tolerance interval of the specified student activity category.
The Teacher's Ability to Manage Learning
Overall the average value of the lecturers ability to manage
learning is 3.54. The value is referred to the established
criteria, it can be concluded that the ability of lecturers to
manage learning is included in both categories.
The Student Responses in Learning Devices
Student responses to all aspects of learning components and
activities are above 80%. The results of this analysis are
referred to the established criteria, it can be concluded that
students' responses to the components and learning activities
by using learning tools oriented towards PBM models are
positive.
V. CONCLUSION
Based on data analysis and discussion in this study, the
following conclusions are presented:
1. The effectiveness of the problem based learning
model, concluded based on: (i) understanding the
mathematical concepts of students obtained a
percentage of 85.29%, (ii) the level of active
activity of students fulfilling the specified ideal time
tolerance criteria, (iii) the ability of lecturers to
manage learning is at good criteria, (iv) student
responses to the components of learning tools and
learning activities are positive.
2. Increasing the ability to understand mathematical
concepts of students using problems based learning
Model on the topic of fraction counting is the
percentage of achievement ability to understand
mathematical concepts in the first trial of 73.53%
increased to 85.29% in the second trial.
3. Levels of active activities of students in the first trial
, there is one active activity of students who not find
the ideal time tolerance criteria, while in the second
trial, all active activities of students find the
specified ideal time tolerance criteria.
4. The ability of lecturers to manage learning in the
first trial is quite good criteria, and in the second
trial is in good criteria.
5. Student responses by using problems based learning
Model are positive (The Everage is 80%).
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