Sample of ASEI Lesson Plan
Mathematics ASEI Lesson Plan
Subject: Mathematics
Theme: Algebraic processes
Topic: Algebra
Sub Topic: Removing brackets involving one variable
Date: dd/mm/yyyy
Class: Basic 6
Duration: 35 Minutes
No of Learners: 30Learning Objectives:
By the end of the lesson learners should be able to:Remove the brackets of algebraic expressions involving one variable/ like-term.
Simplify the algebraic expression.
Rationale:
In our daily life, we encounter situations where we buy the same type of items from different shops and put them together. Also,we come across expressions involving quantities such as 2 chairs, 5 tables, etc. Algebra is that branch of mathematics that uses letters in place of numbers.
Prerequisite/ Previous knowledge:
Pupils have learnt about- Addition, Subtraction and multiplication of variables.
- Like and unlike terms
- Understanding the definition of a variable - understanding what is meant by bracket
Learning Materials:
Bananas, Apples, Mangoes, straws, bottle covers
Reference Materials:
National Mathematics Centre Teaching Module for Primary School Six.
Lesson Development:
STAGE | TEACHER'S ACTIVITY | LEARNER'S ACTIVITY | LEARNING POINTS |
---|
INTRODUCTION full class session (5 mins) | Recap of previous lesson E.g. Simplify the following:- 18a-9a+2a-5a
- 15y-10y-2y+6y
| Pupils respond to the teacher's question.
- (18 + 9 + 2 - 5)a = 24a
- (15 - 10 - 2 + 6)y = 9y
| Addition and subtraction of like terms. |
STEP 1 2 mins. | The teacher gives the pupils instructions by asking them to arrange themselves into groups. | Pupils respond to teachers instructions by grouping themselves and choose their leaders and secretary. | Developing leadership skills. |
|
STEP 2 DEVELOPMENT 5 mins. Activity 1 Whole Class | Find out from pupils in each group how many of them like these particular types of fruits; mangoes(m), apples(a), bananas(b). Teacher captures response for each group and teacher guides pupils to understand practically that, suppose m represents the mangoes, a represents the apples and b represents the bananas.- 2b + 2b + 2b + 2b
= (2 + 2 + 2 + 2)b = 8b - 3m + 4m + 2a
= (3 + 4)m + 2a = 7m + 2a - 5b + 4a + 3a + 2m
= 5b + (4 + 3)a + 2m = 5b + 7a+ 2m
| Identifying the learning materials for teaching; Bananas, Apples, Mangoes, straws, bottle covers. | Linking real-life situations with algebra The concept of repeated addition. |
STEP 3 10 mins Activity 2Group Work | The teacher gives 20 straws to each group. Ask 4 members of each group to pick 2 straws. | 4(2s) | Removing brackets and simplifying |
Ask them to count the number of straws they picked. Let pupils compare their results | 2s + 2s +2s + 2s = 8s |
Ask 3 members in each group to pick 2 straws and 3 straws in their left and right hands respectively. | 3(2s + 3s)
|
Ask pupils to count the number of straws in each group and compare the results | 3((2 + 3)s) = 3(5)s = 15s |
Ask 5 members in each group to pick 4 straws each. | 5(4s) |
Ask each of them to take away 2 straws and count the number of straws left | 5(4s-2s) = 5((4 - 2)s) = 5(2)s = 10s |
Ask 2 members in each group to pick 5 straws and 3 straws. | 2(5s + 3s) |
Ask each of them to take away 4 straws and count the number left. Ask the same pupils to take away 1 straw and count the number of straws left. | - 2(5s + 3s - 4s)
= 2((5 + 3 - 4)s) = 2(4)s = 8s - 8s - 1s = 7s
|
|
EVALUATION 7mins | Simplify the following:- 4(2b)
- 2(3x + 4X)
- 8(5x - 3x)
- 4(4n + 3n + 7n)
- 2(3x + 4x)
- 15(4e - 3e + 2e + e)
| Pupils responds to teachers questions- 8b
- 2(3 + 4)x = 2(7)x
= 14x - 8(5 - 3)x = 8(2)x
= 16x - 4(4 + 3 + 7)n = 4(14)n
= 56n - 2(3 + 4)x = 2(7)x
= 14x - 15(4 - 3 + 2 + 1)e = 15(4)e
= 60e
| Asking the learners questions to assess the achievement of the set objectives. |
|
CONCLUSION 3mins | The teacher asks the pupils to simplify the following.
- (5y + 4) + (4 – y)
- (7x + 4y) – (10x – 8y)
Let pupils establish that, the operation used to solve the activities was multiplication. | The pupils respond to the teacher's question.- (5y + 4) + (4 – y)
= 5y + 4 + 4 – y = 5y – y + 4 + 4 = 4y + 8 A plus (+) sign before a bracket does not change the sign inside the bracket. - (7x + 4y) – (10x – 8y)
= 7x + 4y – 10x + 8y = 4y + 8y + 7x – 10x = 12y – 3x A minus (–) sign before a bracket changes the signs inside the bracket.
| Acquiring/ improving understanding of algebraic expressions. |
ASSIGNMENT | Give them other problems to solve.- 3k – (5 + 2k)
- (3y + 2z) + (y + 3z)
- 4a – 3b – 4b + 2a – 3
- 5d – (2d + 4)
- 4a – 3b – 4b + 2a – 3
| Pupils solve other problems. | Improving their level of understanding. |
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