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# Data Handling

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• 1. Target group: Year 4 Proficiency level: Mix ability Topic: Data Handling Prior Knowledge: All the topics in the Year 4 Mathematics curriculum specification. Curriculum Specifications: 10. Data Handling 10.1 Pictograph 10.2 Bar graph Learning Objectives: 10.1.1 Use pictograph to read and display data 10.2.1 Use bar graphs to read and display data
• Learning Outcomes:
• At the end of all the activities carried out, pupils will be able to:
• Describe a pictograph featuring the picture used to represent data
• Explain what one unit of the picture represent
• 2.
• Construct pictographs to illustrate given information
• Solve a given problem by organizing and interpreting numerical data in pictographs
• Describe a bar graph featuring what the axes represent
• Extract and interpret information from bar graphs by using the mathematical manipulations
• and concepts learnt to obtain answers posed in the multiple choice questions.
• Construct bar graph to illustrate given information
• Solve a given problem by organizing and interpreting numerical data in bar graph.
CCTS: making associations or connections, comparing and constrasting, classifying, grouping and categorising, arranging and sequencing, identifying &quot;true&quot; or &quot;false&quot; statements, making interpretations, solving problems Moral Values: Having analytic and critical thinking & being systematic
• Extract and interpret information from pictograph by using the mathematical manipulations
• and concepts learnt to obtain answers posed in the multiple choice and true false questions.
• 4. The below table shows the favourite fruits of pupils in class 5A. Construct a pictograph by using the table. Drag and drop the items into the correct boxes provided. Check your answers by removing the green box. represent 2 pupils ACTIVITY 1 Number of pupils Fruits 6 10 4 8 Apple Banana Strawberry Orange
• 6. Study the pictograph constructed. Answer the questions below by drag and drop the correct answer into the box provided. Then, show the important steps in the provided space below the questions. 1) Find the total number of pupils in 5A. 2) 12 pupils like to eat mangoes. How many must be drawn? ACTIVITY 2 represent 2 pupils 16 incorrect 28 correct 14 incorrect 24 incorrect 12 incorrect 6 correct
• 7. Study the pictograph constructed. Answer the questions below by drag and drop the correct answer into the box provided. Then, show the important steps in the provided space below the questions. 3) In class 5B, the number of pupils who like oranges is 3 times more than that of the number of pupils who likes oranges in class 5A. How many must be drawn? 4) The mass of oranges is 150g. The mass of strawberries is 105g. If the teacher decided to give those who like oranges 1 orange each and 1 strawberry each what is the total mass of oranges and strawberries the teacher have to buy? represent 2 pupils correct 12 24 incorrect incorrect 6 810g incorrect 0.9kg incorrect 1.62kg correct
• 9. As you use the pen to cut out 1 animal, put a &quot;/&quot; for each animal in the box provided. After that, count all the &quot;/&quot; to see how many chickens, ducks and rabbits are there in Yusof's farm. YUSOF'S FARM ACTIVITY 3A Animals Number of animals Fill in the table below with the correct number.
• 10. Activity 1A Activity 3A User guide: 1) Pupils are shown to the picture of Yusof's farm. 2) Teacher switches the page to full screen to enable pupils to attempt the activity easier and also to have a better view. 3) Teacher selects pupils randomly to come to the front to count the number of animals in the farm.Teacher should evenly distribute the chances among the pupils to interact with the smartboard by asking different pupils to perform different part of the task. 4) Pupils are asked to use the pen to draw a slash 1 animal and put a “ / ” in the box provided. 5) After finished drawing slashes to all the animals and putting correct amount of “ / ” in the box provided, the pupils are asked to count how many “/” are there for each type of animals. 6) Pupils are asked to fill up the table provided at the right. 7) Pupils are asked to tell the amount of different type of animals in Yusof’s farm together by looking at the table. Rationale: In this activity, pupils will be able to categorize things in order. They will learn how to count carefully. Moreover, they will know how a table is constructed and how it comes about. A real life situation is given to them so that they are able to relate data handling to the real world rather than looking data handling as a dull topic. As they draw slash and put “/” in the task, their hand eye coordination is developed. They will be so engaged in the activity where they do not want to miss out counting a certain animal. This kind of concept instilled in mind helps them to perform better in Mathematics as accuracy is always emphasized in this subject. Moreover, they are taught to learn how to do work systematically in the entire process of completing the activity.
• 11. ACTIVITY 3B The below table shows the number of animals in Yusof's farm. Constuct a bar graph using the table. Label the axes. Drag the bar vertically to show the correct data. Check your graph using the purple bar. Number of animals Animals check answers Animals Number of animals 10 20 5
• 12. Activity 3B User guide: 1) Teacher uses the table constructed in activity 1B to allow pupils to construct a bar graph. 2) Pupils are asked to convert the table into bar graph. 3) Firstly, teacher asks pupils to identify the vertical axe and horizontal axe by drag and drop the correct words in the red area. 4) Teacher asks a pupil randomly to label the number on the vertical axe. 5) Teacher then asks volunteers to construct each bar graph by draging the bar vertically until it reaches the level of its amount. 6) Teacher checks pupils’ bar graphs by dragging the purple bar near to the top of each bar. The exact height of each bar graph will emerge in white. Rationale: In this activity, pupils are given the idea on how to construct a bar graph using the data given in a table. It is to show relationships between the frequency of something gathered together to form a table and later interpreted in the form of bar graph. It tells the pupils that there are many ways to make known of a data. The main concern is to show accurate and clear data. This activity requires only little calculation which is to determine what should be labeled on the vertical axe. It is carried out to allow pupils to interpret the table constructed and test their ability to adapt a new way of showing the data through bar graph. This activity is to get pupils familiar with what a bar graph is and to read and understand data disclosed through it. Pupils are given a chance to construct bar graph using smartboard where the differences in colour of the bar graph is able to show the differences in amount of each category vividly compared to the black and white tasksheets. By using smartboard to do data handling is able to allow pupils to understand each steps of constructing a correct bar graph where the important steps are clearly shown in the teaching and learning process.
• 13. Study the bar graph constructed. Answer the questions below by drag and drop the circle to the correct answer. If the answer is correct, it will emerge. Then, show important steps in the provided space. ACTIVITY 4 1) What is the difference in the number of chicken and rabbits? 10 25 15 2) Cheng has the same number of animals in his farm as Yusof. Raju has twice the number of animals in his farm as Yusof. How many animals do Yusof, Cheng and Raju have altogether? 70 105 140 Number of animals in Yusof's farm Animals Ducks Chickens Rabbits 20 15 10 5
• 14. 3) If Yusof and Raju decided to keep their 5 animals in 1 cage, how many cages do Yusof and Raju need? 14 28 21 4) A chicken costs RM 12.30. A duck costs RM 23.50. A rabbit costs RM 28.80. This morning, Yusof sold all his chickens, half of his ducks and 3 rabbits in the market. How much money did he get? RM 507.50 RM 567.40 RM 449.90 Number of animals in Yusof's farm Animals Ducks Chickens Rabbits 20 15 10 5