WHOLE NUMBERS (1–130)
Theme: Number and Numeration
Sub-theme: Whole Numbers
Class: Primary 1
Subject: Mathematics
Term: Second Term
Week: 8
Topic: Whole Numbers (1–130)
Duration: 40 Minutes
Period: Single
Reference Materials:
- NERDC Mathematics Curriculum for Basic Education
- Primary 1 Mathematics Textbook
- Number charts, flashcards, and counters
Performance Objectives:
By the end of the lesson, pupils should be able to:
- Identify and write numbers from 1 to 130.
- Compare numbers within 1–130 using terms greater than (>), less than (<), and equal to (=).
- Arrange numbers in ascending and descending order.
- Skip count in 2s within 130.
- Apply addition of whole numbers in real-life situations.
- Write dictated numbers correctly.
Instructional Materials:
- Number chart (1–130)
- Flashcards with numbers 1–130
- Counters, bottle tops, sticks
- Whiteboard and marker
Content Development
Step 1: Introduction
Teacher revises previous lessons on numbers 1–100.
Teacher asks:
- “Who can count from 1 to 50?”
- “Who can count from 51 to 100?”
Then introduces the new topic:
“Today we will learn all about whole numbers up to 130 — how to identify, compare, order, and add them.”
Step 2: Presentation
A. Counting Numbers 1–130
Pupils count aloud together:
1, 2, 3, … 50, … 100, … 130
📊 Illustration (Partial Chart):
101 102 103 104 105 106 107 108 109 110
111 112 113 114 115 116 117 118 119 120
121 122 123 124 125 126 127 128 129 130
B. Comparing Numbers
- Greater than (>) → bigger number
- Less than (<) → smaller number
- Equal to (=) → same number
Examples:
- 120 > 100
- 90 < 110
- 75 = 75
📘 Activity: Teacher asks pupils to compare numbers on flashcards.
C. Ordering Numbers
- Ascending order: Smallest → Largest
Example: 101, 105, 110, 115, 120 - Descending order: Largest → Smallest
Example: 130, 125, 120, 115, 110
📊 Illustration:
[Insert diagram showing ascending and descending number lines from 101–130]
D. Skip Counting in 2s
Counting by 2s helps pupils recognize patterns:
102, 104, 106, 108, 110, 112, 114, …, 130
📘 Activity: Pupils practice skip counting aloud and using counters.
E. Addition of Whole Numbers
- Simple addition within 130:
- 50 + 30 = 80
- 75 + 20 = 95
- 110 + 10 = 120
Real-life example:
If a shop has 75 oranges and buys 30 more, how many oranges are there? → 105 oranges
F. Dictation of Numbers
Teacher calls out numbers like 115, 122, 130, and pupils write them correctly on their notebooks.
Step 3: Class Activities
Class Exercise 1: Identify and Write the Numbers
Write the numbers that come:
- After 117 → __________
- Before 102 → __________
- Between 110 and 115 → __________
Class Exercise 2: Compare, Order and Skip Count
- Which is greater: 108 or 115?
- Arrange these numbers in ascending order: 123, 119, 127, 121, 125
- Arrange these numbers in descending order: 130, 124, 126, 128, 122
- Skip count in 2s from 120 to 130
Step 4: Board Summary
Concept | Explanation | Example |
Counting | Saying numbers in order | 1–130 |
Greater than | Bigger number | 120 > 100 |
Less than | Smaller number | 90 < 110 |
Equal to | Same number | 75 = 75 |
Ascending order | Small → Big | 101, 105, 110 |
Descending order | Big → Small | 130, 125, 120 |
Skip counting by 2s | Counting every 2 numbers | 102, 104, 106 |
Addition | Adding whole numbers | 75 + 20 = 95 |
Step 5: Evaluation (5 MCQs)
- Which number comes after 124?
A. 123 B. 125 C. 126 D. 127 - Which number is the smallest?
A. 110 B. 105 C. 120 D. 115 - 115 + 10 = ______
A. 125 B. 124 C. 135 D. 120 - Which is greater?
A. 128 B. 122 C. 126 D. 124 - Count by 2s: 120, ___, ___, ___, 130
A. 122, 124, 126 B. 121, 123, 125 C. 123, 125, 127 D. 119, 121, 123
Answer Key: 1(B), 2(B), 3(A), 4(A), 5(A)