Mathematics - Primary 1 - Addition of 2-Digit Numbers Without Regrouping

Addition of 2-Digit Numbers Without Regrouping

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  4. Addition of 2-Digit Numbers Without Regrouping

Term: 2nd Term

Week: 9

Class: Primary 1
Age: 6 years
Duration: 40 minutes (4 periods)
Date:
Subject: Mathematics
Topic: Addition of 2-Digit Numbers Without Regrouping

SPECIFIC OBJECTIVES:

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

  • Add two-digit numbers without regrouping (e.g., 34 + 12).
  • Use the place value system to add tens and ones.

INSTRUCTIONAL TECHNIQUES:

  • Demonstration and modeling.
  • Practice with manipulatives.
  • Group work.

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 the topic. - Write an example of 2-digit addition on the board (e.g., 34 + 12).

- Greet the teacher. - Observe the teacher’s demonstration.

STEP 2: EXPLANATION

- Explain the steps involved in adding two-digit numbers without regrouping. - Use counters and number lines for visualization.

- Listen and follow the explanation.

STEP 3: INTERACTIVE SESSION

- Ask pupils to practice addition of two-digit numbers without regrouping using counters (e.g., 25 + 13). - Walk around to assist.

- Solve problems with counters and share answers with peers.

STEP 4: NOTE TAKING

- Write problems on the board for pupils to copy and solve in their notebooks.

- Copy problems and solve them in their notebooks.

 

EVALUATION:

  1. What is 45 + 22?
  2. Add: 36 + 14.

CLASSWORK:

  • Complete addition problems involving two-digit numbers without regrouping in their notebooks.

CONCLUSION:

Teacher reinforces the concept and congratulates pupils for mastering the skill.