Mathematics - Primary 1 - Length: Introduction

Length: Introduction

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Term: 3rd Term

Week: 3

Class: Primary 1
Age: 6 years
Duration: 40 minutes (4 periods)
Date:
Subject: Mathematics
Topic: Length: Introduction

SPECIFIC OBJECTIVES:

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

  • Understand the concept of length.
  • Learn how to measure objects using non-standard units (e.g., hand span, foot, etc.).

INSTRUCTIONAL TECHNIQUES:

  • Explanation, demonstration, and interactive activities.

INSTRUCTIONAL MATERIALS:

  • Measuring tapes, rulers, and various objects to measure.

PERIOD 1 and 2:

PRESENTATION

TEACHER’S ACTIVITY

PUPIL’S ACTIVITY

STEP 1: INTRODUCTION

- Introduce the topic by discussing the importance of measuring things. - Show objects of different lengths.

- Listen and ask questions about the concept of length.

STEP 2: EXPLANATION

- Explain that length is how long something is. - Demonstrate measuring an object using a non-standard unit (e.g., hand span).

- Observe and repeat the measurements demonstrated by the teacher.

STEP 3: INTERACTIVE SESSION

- Ask pupils to measure their desks or books using their hands. - Guide them through the process.

- Pupils measure objects in the classroom using hand spans or feet.

STEP 4: NOTE TAKING

- Write the word "Length" on the board and a few examples of non-standard units of measurement.

- Copy the notes on length and non-standard units.

 

EVALUATION:

  1. Measure your pencil using your hand.
  2. What is the length of your desk in hand spans?

CLASSWORK:

  • Measure objects in the classroom using hand spans or feet and write down the results.

CONCLUSION:

  • Teacher praises the pupils and encourages them to practice measuring objects at home.

 

PERIOD 3 and 4:

PRESENTATION

TEACHER’S ACTIVITY

PUPIL’S ACTIVITY

STEP 1: INTRODUCTION

- Recap the concept of length.

- Respond to the recap of the concept of length.

STEP 2: EXPLANATION

- Introduce the standard unit of measurement (centimeter). - Explain that we use rulers to measure length in centimeters.

- Listen attentively and observe the demonstration with a ruler.

STEP 3: DEMONSTRATION

- Demonstrate how to measure objects using a ruler in centimeters.

- Pupils observe the teacher’s demonstration and then practice with their own rulers.

STEP 4: NOTE TAKING

- Write examples of measurements on the board. Example: "This pencil is 5 cm long."

- Pupils copy the examples of measurements into their notebooks.

 

EVALUATION:

  1. Measure your ruler in centimeters.
  2. How long is your pencil in centimeters?

CLASSWORK:

  • Pupils measure various classroom objects using a ruler and record the measurements.

CONCLUSION:

Teacher praises pupils for their participation and encourages them to practice measuring objects at home.