CONSTRUCTNIST FORMAT LESSON PLAN No. 3 
Name of the Teacher : Visakh B 
Subject : Mathematics 
Unit : Measures of Central tendency 
Submit : Middle and mean 
Name of the School : MTGHSS 
Standard : X 
Strength : 45 
Time : 40 Min. 
CURRICULAR STATEMENT : 
CONTENT ANALYSIS : 
New Terms : 
Facts : 
Concepts : 
CURRICULAR OBJECTIVES : 
Learning outcomes : 
PRE-REQUISITES : 
Learning Aids : 
Learning strategies : 
To understand about middle and mean, its relevance in 
mathematics (STATISTICS) and its importance in daily life 
through observations, organization of chart and by analyzing the 
prepared notes of the pupil. 
Middle, Mean 
(i) In an arithmetic sequence the numbers are distributed in 
the same fashion on either side of the middle of the first 
and the last. 
(ii) Mean is obtained by dividing the sum of observations by 
number of observations. 
(i) Concept of middle 
(ii) Concept of mean 
To find middle and mean 
The pupil 
(i) will recalls the term middle and mean 
(ii) will identifies the concept of middle and mean 
(iii) will discuss the problem on observations with other 
students 
Pupils have knowledge on sum and division. 
Usual class room aids, paper cutouts, charts. 
(i) Group discussion 
(ii) Meaningful verbal explanation 
(iii) Observation 
(iv) Activity 
(v) Observing tables, charts etc.
Major Concepts 
Class room Interaction Procedure 
Expected Response 
INTRODUCTION 
Activity – 1 
Ascending order is 3, 5, 7, 8, 9 
Descending order is 8, 6, 5, 3, 2 
PRESENTATION 
Activity – 2 
1, 3, 4, 8, 9 
middle is 4 (B.B) 
Activity – 3 
40, 50, 55, 43, 57 
Sum = 40 + 50 + 55 + 43 + 57 
= 245 
(i) Arrange the following 
observations into ascending 
order. 
9, 3, 7, 8, 5 
(ii) Arrange the following numbers 
into descending order 
6, 3, 2, 8, 5 
Through these questions the teacher 
introduce the topic 
Teacher writes on the black board as 
9, 8, 1, 4, 3 and asks the pupil to find 
the middle. 
1, 3, 4, 8, 9 
Middle is 4 
Teacher arrange the students into 4 
groups and each group contain 5 
students. The teacher calls the students 
from each group and arrange them 
orderly and then asks each group to 
find the middle one. From these 
activities the pupils understand the 
term ‘middle’. 
The teacher says the students of each 
group to write their weights. Teacher 
notes the weight of the members in 
group A on the black board. 
40, 50, 55, 43, 57 
Teacher tells the students in each group 
to divide the sum by the number of 
students in each group. 
Pupil gives the answer 
Pupil gives the answer 
With the help of the teacher pupil 
understand the term middle. 
From this pupil understands the 
term middle with the help of the 
teacher. 
Through discussion pupils find the 
sum.
Sum 
____________ 
No. of students 
= 
245 
5 
= 49 
Activity – 4 
Sum of OX5 
Mean = 
No. of obs 
REVIEW 
Activity – 5 
Follow-up 
Activities 
Sum 
____________ 
No. of students 
= 
245 
5 
= 49 
The teacher give five observations 
x1, x2 , x3, x4, x5 and asks to find their 
mean 
Mean = x1 + x2 + x3 + x4 + x5 
5 
Now teacher generalize the concept of 
mean as 
Sum of observations 
Mean = 
No. of observations 
Teacher briefly describes the concept 
of middle and mean and then 
concludes the topic. 
Now teacher shows a chart containing 
the equations of middle and mean. 
Teacher tells the pupil to find out more 
problems regarding middle and mean. 
Teacher asks the pupil to do more 
problems. 
All pupils gives the answer 
All pupils find out the answers 
correctly.

New microsoft office word document1

  • 1.
    CONSTRUCTNIST FORMAT LESSONPLAN No. 3 Name of the Teacher : Visakh B Subject : Mathematics Unit : Measures of Central tendency Submit : Middle and mean Name of the School : MTGHSS Standard : X Strength : 45 Time : 40 Min. CURRICULAR STATEMENT : CONTENT ANALYSIS : New Terms : Facts : Concepts : CURRICULAR OBJECTIVES : Learning outcomes : PRE-REQUISITES : Learning Aids : Learning strategies : To understand about middle and mean, its relevance in mathematics (STATISTICS) and its importance in daily life through observations, organization of chart and by analyzing the prepared notes of the pupil. Middle, Mean (i) In an arithmetic sequence the numbers are distributed in the same fashion on either side of the middle of the first and the last. (ii) Mean is obtained by dividing the sum of observations by number of observations. (i) Concept of middle (ii) Concept of mean To find middle and mean The pupil (i) will recalls the term middle and mean (ii) will identifies the concept of middle and mean (iii) will discuss the problem on observations with other students Pupils have knowledge on sum and division. Usual class room aids, paper cutouts, charts. (i) Group discussion (ii) Meaningful verbal explanation (iii) Observation (iv) Activity (v) Observing tables, charts etc.
  • 2.
    Major Concepts Classroom Interaction Procedure Expected Response INTRODUCTION Activity – 1 Ascending order is 3, 5, 7, 8, 9 Descending order is 8, 6, 5, 3, 2 PRESENTATION Activity – 2 1, 3, 4, 8, 9 middle is 4 (B.B) Activity – 3 40, 50, 55, 43, 57 Sum = 40 + 50 + 55 + 43 + 57 = 245 (i) Arrange the following observations into ascending order. 9, 3, 7, 8, 5 (ii) Arrange the following numbers into descending order 6, 3, 2, 8, 5 Through these questions the teacher introduce the topic Teacher writes on the black board as 9, 8, 1, 4, 3 and asks the pupil to find the middle. 1, 3, 4, 8, 9 Middle is 4 Teacher arrange the students into 4 groups and each group contain 5 students. The teacher calls the students from each group and arrange them orderly and then asks each group to find the middle one. From these activities the pupils understand the term ‘middle’. The teacher says the students of each group to write their weights. Teacher notes the weight of the members in group A on the black board. 40, 50, 55, 43, 57 Teacher tells the students in each group to divide the sum by the number of students in each group. Pupil gives the answer Pupil gives the answer With the help of the teacher pupil understand the term middle. From this pupil understands the term middle with the help of the teacher. Through discussion pupils find the sum.
  • 3.
    Sum ____________ No.of students = 245 5 = 49 Activity – 4 Sum of OX5 Mean = No. of obs REVIEW Activity – 5 Follow-up Activities Sum ____________ No. of students = 245 5 = 49 The teacher give five observations x1, x2 , x3, x4, x5 and asks to find their mean Mean = x1 + x2 + x3 + x4 + x5 5 Now teacher generalize the concept of mean as Sum of observations Mean = No. of observations Teacher briefly describes the concept of middle and mean and then concludes the topic. Now teacher shows a chart containing the equations of middle and mean. Teacher tells the pupil to find out more problems regarding middle and mean. Teacher asks the pupil to do more problems. All pupils gives the answer All pupils find out the answers correctly.