PRIMARY 1: MATHEMATICS – THIRD TERM | WEEK 4

TOPIC: MEASUREMENT OF LENGTH

A: TEACHING AND LEARNING MATERIALS

1. Pencils of different lengths.
2. Ropes.
3. Sticks.
4. Books.
5. Classroom objects.
6. Pupils’ writing books and pencils.

B: REFERENCE MATERIALS

1. Scheme of work.
2. Recommended Mathematics textbook for Primary 1.
3. Online educational resources.

C: PREVIOUS KNOWLEDGE

The pupils can observe objects and tell whether they are big or small.

D: PERFORMANCE OBJECTIVES

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

1. Explain the simple meaning of length.
2. Identify long and short objects.
3. Compare the lengths of two objects.
4. Measure objects using hand span.
5. Measure short distances using footsteps.

E: CONTENT

Meaning of Length

Length tells us how long or short something is.
Examples:
✏️ A pencil has a length.
📏 A ruler has a length.

Long and Short

Some objects are long.
Some objects are short.
Example:
━━━━━━━━━━ = Long
━━━ = Short
A broom may be longer than a pencil.
A pencil may be shorter than a broom.

Measuring with Hand Span

We can use our hand to measure.
🖐️ One hand span is the distance from the tip of the thumb to the tip of the little finger when the hand is stretched.
Example:
A desk may be 5 hand spans long.

Measuring with Footsteps

We can measure a short distance by counting our steps.
Example:
From the door to the board may be 8 steps.

F: LESSON PRESENTATION

F1: Teachers’ Activities

1. Shows pupils long and short objects.
2. Explains the meaning of length.
3. Compares two objects.
4. Demonstrates measurement using hand span.
5. Demonstrates measurement using footsteps.
6. Guides pupils through practical activities.

F2: Pupils’ Activities

1. Identify long and short objects.
2. Compare two classroom objects.
3. Use hand spans to measure desks.
4. Use footsteps to measure short distances.
5. Say which objects are longer or shorter.

G: CONCLUSION

The teacher reminds pupils that length tells us how long or short an object is.
The teacher encourages pupils to compare and measure safe objects at home.

H: EVALUATION GUIDE

Pupils should be able to answer the following questions:

1. What does length tell us?
2. Which is usually longer: a broom or a pencil?
3. Which is usually shorter: a ruler or a classroom door?
4. Name one way of measuring without a ruler.
5. What part of the body can we use for a hand-span measurement?
6. Which word means having more length: longer or shorter?
7. Measure your desk using your hand span.