This lesson plan teaches 7th grade students about stem and leaf diagrams. The lesson will have students organize various data sets into stem and leaf diagrams, including birth months of classmates, earthquake magnitudes, blood pressure readings, and numbers of students who experienced bullying. The lesson aims to help students understand what stem and leaf diagrams are, how they are constructed, and how they can be used to organize and interpret data. Student learning will be evaluated by having them construct stem and leaf diagrams and answer questions about diagrams representing exam scores from two sections.

1. BAYUGAN NATIONAL COMPREHENSIVE HIGH SCHOOL
BAYUGAN CITY
DETAILED LESSON PLAN IN GRADE 7 MATHEMATICS
Grade Level: 7 Quarter: Fourth
No. of hour sessions: 1
Teaching Date: February 2, 2018 Time: 11:00-12:00 NOON
I. Objectives
A. ContentStandard: The learner demonstrates understanding of key concepts, uses and
importance of Statistics, data collection/gathering and the different forms of data
representation.
B. PerformanceStandard:The learner is able to collector gather statistical data.
C. LearningCompetencies:Thelearners will be able to use stem and leaf diagrams to
organize data.
II. Content
Steam and Leaf Diagram
III. Reference
Grade 7 Mathematics Patterns and Practicalitiesby Gladys C. Nivera, Ph.D.,p. 426-431
IV. Integration
Anti-Bullying
V. Procedures
1. Reviewingthelesson
1.1 What do you mean by Statistics?
1.2 Can yougive me some reasons why there is a study of statistics?
2. Establishingapurposeofthelesson
Baby Boom!
BIRTH MONTHS
Month Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec
# of
Students
Guide Questions:
1. In whichmonthwere mostof the studentsinthe classborn?
2. In whichmonthwere the leastnumberof studentsinthe classborn?
3. What can youinferfromdata?

2. 3. Presentingexamples/instancesofthenewlesson
Guide Questions:
1. Can you organize the data for easier interpretation?
2. What is the magnitude of the strongest earthquake since 1900?
3. What is the most frequent magnitude of the earthquakes on this list?
4. Discussionofthenewlesson
A table is a systematic arrangement of data usually arranged in rows or columns for ready
reference of information.
Stem and leafdisplay is a method of organizing data in which the stem values or the
leading digit(s) for each observation are listed in a column and the leafvalues or the
trailing digit(s) for each observation is then listed beside the corresponding stem.
Use the World’sMajorEarthquakesto constructastem and leafdiagram.

3. 5. Discussionofthenewlesson2
Here is a set of systolic blood pressure of 20 patients. Construct a stem and leaf diagram.
(Hint: for 119, the stem is 11 and the leaf is 9).
119 125 131 122 141 118 124 120 130 135
121 124 142 140 134 126 127 145 151 160
6. Developingmastery
Section Daisy wants to promote the anti-bullying in the school.They survey 15
classroom that has 60 students each whosuffer frombullying. Here are the result from the
survey, make a stem and leaf diagram of the result.
11 21 31 12 18
13 22 30 15 24
32 21 33 25 31
8. Makinggeneralizations
To sum it up, can someone give his/her understanding about our lesson for today?
Guide questions:
1. What do youmean by stem and leaf display?
2. Is it helpful in organizing the data?
9. Evaluatinglearning
The followingback-to-backstem and leaf diagram represents the scores of the students in
twodifferent sections fora common examination. In each section, 30 students took the
examination.
I- Charity Stem I-Peace
Leaf Leaf
5, 2, 1 4 0, 3
7, 6, 3, 3, 0 5 1, 2, 2, 5
8, 8, 7, 5, 1, 0 6 3, 4, 6, 6, 7, 9
9, 8, 7, 7, 6 7 0, 0, 3, 5, 8, 8, 9
9, 7, 7, 3, 2, 1, 1 8 0, 1, 1, 3, 4, 5, 5
6, 3, 0, 0 9 1, 2, 2, 5

4. 1. Which section got the highest score? What was the score?
2. Which section got the lowest score? What was the score?
10. Additional activitiesforapplicationorremediation
Construct a stem and leaf diagram.
1. Marco’s travel time from school to his house varies daily due to traffic and other factors.
He records his daily travel time in minutes for20 days as follows:
25 32 18 26 40
20 31 21 34 28
19 36 25 38 41
40 23 22 30 31
VI. Remarks
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5. DETAILED LESSON PLAN IN GRADE 7 MATHEMATICS
Time: 11:00-12:00 A.M.
Grade & Section: Grade 7 Daisy
Submitted by:
LYCELJINE C. TANEDO
BNCHS Student Teacher
Submitted to:
MR. FRANCIS IAN S. MENDOZA
Cooperating Teacher