TOPIC: ORDERING AND COMPARING WHOLE NUMBERS
A: TEACHING AND LEARNING MATERIALS
- Number flashcards.
- Number chart.
- Symbol cards showing >, < and =.
- Number line.
- Pupils’ writing books and pencils.
B: REFERENCE MATERIALS
- Scheme of work.
- Recommended Mathematics textbook for Primary 3.
- Online educational resources.
C: PREVIOUS KNOWLEDGE
The pupils can read four-digit numbers and identify the place value of digits.
D: PERFORMANCE OBJECTIVES
By the end of the lesson, pupils should be able to:
- Compare two numbers.
- Use >, < and = correctly.
- Arrange numbers in ascending order.
- Arrange numbers in descending order.
- Identify the greatest and smallest numbers.
E: CONTENT
Comparing Numbers
We use three signs:
> means greater than.
< means less than.
= means equal to.
Examples:
- 10 > 5
- 4 < 9
- 20 = 20
🐊 Think of the open side of the sign as facing the bigger number.
Ascending Order
Ascending order means arranging numbers from smallest to biggest.
Example:
45, 12, 30, 8
Ascending order:
8, 12, 30, 45
Descending Order
Descending order means arranging numbers from biggest to smallest.
Example:
65, 20, 90, 15
Descending order:
90, 65, 20, 15
F: LESSON PRESENTATION
F1: Teachers’ Activities
- Revises whole numbers.
- Introduces the signs >, < and =.
- Demonstrates how to compare numbers.
- Explains ascending and descending order.
- Uses number cards for practical exercises.
- Guides pupils to identify the greatest and smallest numbers.
F2: Pupils’ Activities
- Compare given numbers.
- Use comparison signs correctly.
- Arrange numbers in ascending order.
- Arrange numbers in descending order.
- Identify the greatest and smallest numbers.
G: CONCLUSION
The teacher revises comparing and ordering numbers and corrects pupils where necessary.
Pupils are encouraged to practise arranging numbers from smallest to biggest and from biggest to smallest.
H: EVALUATION GUIDE
Pupils should be able to answer the following questions:
- Fill in the correct sign: 45 \_\_\_ 30.
- Fill in the correct sign: 72 \_\_\_ 72.
- Fill in the correct sign: 28 \_\_\_ 39.
- Arrange in ascending order: 32, 8, 19, 45.
- Arrange in descending order: 70, 25, 90, 40.
- Which is greater: 2,450 or 2,405?
- Which is the smallest: 315, 153, 351?