Multiplication of 2 Digit Numbers by One Digit Number (Primary 3)
MATHEMATICS
SECOND TERM
WEEK 3
PRIMARY 3
THEME – BASIC OPERATIONS
PREVIOUS LESSON – Second Term Scheme of Work and Plan Lesson Notes for MATHEMATICS Week 1 to Week 12 Primary Schools
TOPIC – MULTIPLICATION OF 2 DIGIT NUMBERS BY ONE DIGIT NUMBER
PERFORMANCE OBJECTIVES
By the end of the lesson, the pupils should have attained the following objectives (cognitive, affective and psychomotor) and should be able to –
1. multiply from 1 × 1 to 9 × 9.
2. multiply 2-digit number by 1-digit number.
3. carry out correct multiplication in everyday activities.
ENTRY BEHAVIOUR
INSTRUCTIONAL MATERIALS
The teacher will teach the lesson with the aid of:
1. 10 × 10 square chart.
2. Multiplication table.
3. Chart showing multiplication of 2-digit numbers by 1-digit number.
4. Multiplication charts for three 1-digit numbers.
5. Multiplication table.
METHOD OF TEACHING – Choose a suitable and appropriate methods for the lessons.
Note – Irrespective of choosing methods of teaching, always introduce an activities that will arouse pupil’s interest or lead them to the lessons.
REFERENCE MATERIALS
1. Scheme of Work
2. 9 – Years Basic Education Curriculum
3. Course Book
4. All Relevant Material
5. Online Information
CONTENT OF THE LESSON
LESSON ONE – INTRODUCTION
Teacher’s/Pupil’s Activities 1 – Group, Add and Multiply
Study the Samples
AAAAAAAA4 groups of 2A
2 + 2 + 2 + 2 = 8
2 x 4 = 8
0000000000003 groups of 4 zeros
4 + 4 + 4 = 12
4 x 3 = 12
Copy and Complete
1.
BBBBBBBBBBBBBBB5 group of 3B
3 + ____ ± ____ + ____ + 3 = ____
3 x ____ = 15
2. 👜👜👜👜👜 👜👜👜👜👜 👜👜👜👜👜 👜👜👜👜👜 👜👜👜👜👜
4 groups of ____ bags
____ ± ____ + ____ + 5 = ____
4 x 5 = ____
3. 👚👚 👚👚 👚👚
2 groups ____ gowns
____ + 2 + ____ = ____
____ x 3 = ____
4. 👠👠👠 👠👠👠 👠👠👠 👠👠👠 👠👠👠
5 groups of ____ shoes
3 + ____ ± ____ + ____ + 3 = ____
3 x 5 = ____
Pupil’s Activities 2 – Take Home
Multiplication Table 1 – 10
LESSON TWO – BASIC MULTIPLICATION
Pupil’s Activities 1 – Quick Test (5 minutes)
Use the Multiplication to Complete the following,
1. 3 x 6 =
2. 7 x 5 =
3. 3 x 3 =
4. 9 x 7 =
Pupil’s Activities 2 – Revision on Expansion of Numbers (5 (minutes)
Sample
17 = 10 + 7
23 = 20 + 3
48 = 40 + 8
Expand the following numbers,
1. 1. 28 = ____ + 8
2. 32 = ____ + 2
3. 46 = ____ + ____
4. 54 = ____ + ____
Teacher’s/Pupil’s Activities 3 – Multiplication by Expanded Method (10 minutes)
Working Examples
23 x 2
2 3 = 20 + 3
20 + 3
x 2
______
40 + 6 = 46
Therefore, 23 x 2 = 46
35 x 3
32 = 30 + 5
30 + 5
x 3
_______
90 + 15
= 90 + 10 + 5
= 100 + 5 = 105
Therefore, 35 x 3 = 105
Pupil’s Activities 4 – Exercise/Take Home (20 minutes)
Multiply each of the following
1. 32 x 3
2.13 x 2
3. 47 x 3
4. 85 x 5
LESSON THREE – MULTIPLICATION BY SHORT METHODS
Teacher’s/Pupil’s Activities 1 – Marking and Correction
By Both Methods
1. 32 x 3
32 = 30 + 2
30 + 2 3 2
x 3 x 3
_______ _____
90 + 6 = 9 6
Therefore, 32 x 3 = 96
2.13 x 2
13 x 2
10 + 3 1 3
x 2 x 2
_______ _____
20 6 = 26 2 6
3. 47 x 3
47 = 40 + 7
40 + 7 4 7
x 3 x 3
_______ _____
120 + 21 141
=120 + 20 + 4
= 144
Pupil’s Activities 2 – Exercise/Take Home
1. 4 4 2. 2 4 3. 5 2 4. 3 4
x 6 x 7 x 3 x 2
______ ______ ______ ______
______ ______ ______ ______
LESSON FOUR – APPLICATION
Working Examples
A cat has 4 legs. How many legs do 13 cats have?
A cat has 4 legs, 1 x 4 = 4.
Two cats have 8 legs, 2 x 4 = 8.
Three cats have _____, 3 x 4 = 12.
Six cats have _____, 6 x 4 = _____.
13 cats have _____, 13 x 4 = _____.
QUANTITATIVE REASONING, AS STATED IN THEIR QUANTITATIVE BOOKS OR TEXTBOOKS
PRESENTATION
To deliver the lesson, the teacher adopts the following steps:
1. To introduce the lesson, the teacher revises the previous lesson. Based on this, he/she asks the pupils some questions;
2. Guides pupils in the use of square charts to carry out multiplication from 1 × 1 to 9 × 9.
Pupil’s Activities – Use square charts and multiplication tables to carry out multiplication from 1 × 1 to 9 × 9.
3. Guides pupils to use repeated addition for multiplication.
Pupil’s Activities – Carry out multiplication of 2-digit numbers by 1-digit number and use repeated addition for multiplication.
4. Guides pupils to use multiplication chart to multiply 2-digit number by 1-digit number horizontally or vertically.
Pupil’s Activities – Practice multiplication of 2-digit numbers by 1-digit number horizontally and vertically.
5. Guides pupils to multiply three 1-digit numbers taking two at a time.
Pupil’s Activities – Carry out series of multiplication of three 1-digit numbers taking two at a time.
6. Emphasizes the need to carry out correct multiplication in everyday activities.
Pupil’s Activities – Carry out correct multiplication in everyday activities.
7. Leads pupils to give examples of areas where correct multiplication is important in everyday activities.
Pupil’s Activities – Give examples of everyday activities that require correct multiplication.
CONCLUSION
To conclude the lesson for the week, the teacher revises the entire lesson and links it to the following week’s lesson.
LESSON EVALUATION
Pupils to:
1. carry out given multiplications from 1 × 1 to 9 × 9.
2. multiply given 2-digit number by 1-digit number.
3. multiply 2-digit number by 1-digit number vertically or horizontally.
4. multiply given three 1-digit numbers taking two at a time.
5. give examples of everyday activities that require correct multiplications
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About The Author
Alabi M. S.
Michael is Principal Education Officer at LASUBEB. With 15+ years experience in teaching and learning, He loves talking about Plan Lesson Notes and Quality Assurance in Education. He also believes teachers inspire our future. CRN (ClassRoomNotes) is a website FOR TEACHERS BY TEACHER, and He aims to continuously inform and encourage teaching! All materials are subject to TERMLY review.