Mathematics - Primary 4 - Multiplication of whole numbers

Multiplication of whole numbers

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Term: 1st Term

Week: 7

Class: Primary 4
Age: 9 years
Duration: 40 minutes of 5 periods
Date:
Subject: Mathematics
Topic: Multiplication of Whole Numbers

SPECIFIC OBJECTIVES:

At the end of the lesson, pupils should be able to:

  1. ) Multiply whole numbers by 2-digit numbers not exceeding 50 using the grid method and the vertical method.
  2. ) Solve quantitative reasoning on multiplication.

INSTRUCTIONAL TECHNIQUES: Explanation, demonstration, group work, class discussion, question and answer.
INSTRUCTIONAL MATERIALS: Grid chart, multiplication table, flashcards, place value counters, chalkboard, textbook.

INSTRUCTIONAL PROCEDURES

PERIOD 1 and 2:

PRESENTATION

TEACHER’S ACTIVITY

PUPIL’S ACTIVITY

STEP 1 – INTRODUCTION

The teacher revises multiplication facts and asks oral questions.

Pupils respond and recall facts.

STEP 2 – EXPLANATION

Explains how to multiply 2-digit numbers using the grid and vertical methods.

Pupils listen and ask questions.

STEP 3 – DEMONSTRATION

Demonstrates: a. 23 × 12 using grid method b. 34 × 11 using vertical method.

Pupils watch and participate.

STEP 4 – NOTE TAKING

Guides pupils to write short notes with solved examples in their notebooks.

Pupils write neatly.

NOTE:
Multiply:

  1. 21 × 3
  2. 14 × 12
  3. 33 × 9

EVALUATION: Multiply:
i. 17 × 4
ii. 25 × 12
iii. 13 × 11

CLASSWORK: As in evaluation
ASSIGNMENT: Multiply:
i. 19 × 5
ii. 24 × 11
iii. 15 × 13

CONCLUSION: The teacher commends the pupils positively.

 

PERIOD 3 and 4:

PRESENTATION

TEACHER’S ACTIVITY

PUPIL’S ACTIVITY

STEP 1 – INTRODUCTION

Reviews previous multiplication examples.

Pupils solve quick revision questions.

STEP 2 – EXPLANATION

Gives real-life multiplication word problems (e.g. “If a pencil costs ₦25, how much will 12 cost?”)

Pupils listen and ask questions.

STEP 3 – DEMONSTRATION

Works through 2 story problems with the class.

Pupils solve along.

STEP 4 – NOTE TAKING

Guides pupils to write out and solve two problems from the board.

Pupils copy into notebooks.

NOTE:
Solve:

  1. If a bag of rice costs ₦32, how much will 12 bags cost?
  2. A pupil saves ₦45 every week. How much will he save in 9 weeks?

EVALUATION: Solve:
i. 26 × 8
ii. 39 × 6
iii. 15 × 12

CLASSWORK: As in evaluation
ASSIGNMENT: Solve:

  1. 23 × 9
  2. 18 × 11
  3. A box holds 25 pens. How many pens in 16 boxes?

CONCLUSION: The teacher commends the pupils positively.

 

PERIOD 5:

PRESENTATION

TEACHER’S ACTIVITY

PUPIL’S ACTIVITY

STEP 1 – INTRODUCTION

Oral multiplication drill for reinforcement.

Pupils participate in drills.

STEP 2 – EXPLANATION

Presents a multiplication game or activity for reinforcement.

Pupils take part in the game.

STEP 3 – DEMONSTRATION

Monitors and corrects as pupils attempt problems.

Pupils work in pairs or groups.

STEP 4 – NOTE TAKING

Reviews work done and summaries key methods.

Pupils write corrections.

NOTE:
Practice:
i. 22 × 12
ii. 19 × 5
iii. 38 × 9

EVALUATION: Multiply:

  1. 25 × 6
  2. 14 × 13
  3. 31 × 11

CLASS ACTIVITY: Multiplication speed contest.
CLASSWORK: As in evaluation
ASSIGNMENT: Multiply:
i. 27 × 8
ii. 15 × 14
iii. A box contains 45 toys. How many toys are in 10 boxes?

CONCLUSION: The teacher commends the pupils positively.