Mathematics - Primary 1 - Subtraction involving addition

Subtraction involving addition

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Term: 2nd Term

Week: 7

Class: Primary 1
Age: 6 years
Duration: 40 minutes (4 periods)
Date: [Insert Date]
Subject: Mathematics
Topic: Subtraction Involving Addition

SPECIFIC OBJECTIVES:

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

  • Solve subtraction problems by using addition to find the missing number (inverse operation).
  • Understand the relationship between subtraction and addition.

 

INSTRUCTIONAL TECHNIQUES:

  • Step-by-step demonstration.
  • Group practice and peer interaction.
  • Use of manipulatives.

INSTRUCTIONAL MATERIALS:

  • Counters.
  • Number cards.
  • Chalkboard and chalk.

 

INSTRUCTIONAL PROCEDURES

PERIOD 1 and 2:

PRESENTATION

TEACHER’S ACTIVITY

PUPIL’S ACTIVITY

STEP 1: INTRODUCTION

- Greet pupils and introduce subtraction involving addition. - Explain the concept of subtraction as the inverse of addition.

- Greet the teacher. - Listen and observe the introduction.

STEP 2: EXPLANATION

- Demonstrate subtraction problems by using addition (e.g., 7 – 3 = ? can be solved by 3 + ? = 7). - Use counters for demonstration.

- Listen carefully and observe the demonstration.

STEP 3: INTERACTIVE SESSION

- Ask pupils to solve subtraction problems by using addition, e.g., 8 – 4 = ? - Walk around to assist.

- Solve subtraction problems using addition (inverse operation).

STEP 4: NOTE TAKING

- Write problems on the board and ask pupils to copy them in their notebooks. - Guide them to solve the problems.

- Copy problems and solve them.

 

EVALUATION:

  1. Solve: 6 – 2 = ? (Use addition to find the answer).
  2. Solve: 9 – 5 = ? (Use addition to solve).

CLASSWORK:

  • Complete subtraction problems involving addition in their notebooks.

CONCLUSION:

  • The teacher praises the pupils and reinforces their understanding of the relationship between addition and subtraction.