Whole Numbers 1, 500 for Primary 1

Class: Primary 1
Term: First Term
Week: 3
Age: 6 years
Duration: 45 minutes
Subject: Mathematics
Curriculum Theme: Numbers and Numeration
Previous Lesson: Whole Numbers 1, 300.
Topic: Whole Numbers 1 – 500
Subject Matter: Collecting, sorting and classifying objects leading to the idea of numbers 1 – 500; Identification of number of objects 1 – 500; Reading of numbers 1 – 500; Writing of numbers 1 – 500; Ordering of numbers up 1 – 500; Writing numbers in words: 1 – 100.

Specific Objectives

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

Cognitive Domain:

• Identify numbers from 1 to 500.
• Read numbers from 1 to 500.
• Write numbers from 1 to 500.
• Order numbers from 1 to 500 from smallest to largest and vice versa.
• Write numbers 1 to 100 in words.

Affective Domain:

• Show interest in learning about whole numbers.
• Participate actively in number-related activities.

Psychomotor Domain:

• Sort and classify various objects accurately.
• Write numbers neatly in their notebooks.

Social Domain:

• Collaborate with peers during group activities involving numbers.

Reference Materials

The following resources were used in planning this lesson:

• 9 Years Basic Education Curriculum
• State Unified Scheme of Work
• Primary Mathematics for Nigerian Schools Book 1

Instructional Materials

The teacher will teach this lesson with the aid of:

• Flash cards with numbers 1-500
• Counters (e.g., bottle tops, stones, sticks)
• Number charts
• Real objects for sorting (e.g., different coloured beads, shapes)

Rationale for the Lesson

This lesson helps pupils understand basic number concepts. It enables them to count, identify, and write numbers, which are fundamental skills for everyday life and further mathematics learning.

Prerequisite/Previous Knowledge

Pupils can count objects up to 100 and recognize some numbers.

Lesson Content/Board Summary

WHOLE NUMBERS 1 – 500

1. Collecting, Sorting, and Classifying Objects

Collecting means gathering objects together. Sorting means putting objects into different groups based on a rule. Classifying means naming these groups.

Examples:

• Collecting different fruits, then sorting them by color or type.
• Collecting bottle tops, then classifying them by size (small, medium, large).

2. Identification of Numbers 1 – 500

Identification means being able to point out and name a number when you see it. We can identify numbers using flash cards or number charts.

Example: The teacher shows a flash card with ‘245’ and pupils say “Two hundred and forty-five”.

3. Reading of Numbers 1 – 500

Reading numbers means saying them aloud correctly. We read numbers from left to right.

Examples:

• 120 – One hundred and twenty
• 356 – Three hundred and fifty-six
• 499 – Four hundred and ninety-nine

4. Writing of Numbers 1 – 500

Writing numbers means putting them down on paper using digits (0, 1, 2, 3, 4, 5, 6, 7, 8, 9).

Examples:

• One hundred and fifty-three is written as 153.
• Two hundred and seven is written as 207.

5. Ordering of Numbers 1 – 500

Ordering numbers means arranging them from smallest to largest (ascending order) or from largest to smallest (descending order).

Example 1: Arrange 120, 50, 210 in ascending order.

• Step 1: Look at the numbers: 120, 50, 210.
• Step 2: Find the smallest number: 50.
• Step 3: Find the next smallest: 120.
• Step 4: The largest is: 210.
• Answer: 50, 120, 210.

Example 2: Arrange 400, 390, 410 in descending order.

• Step 1: Look at the numbers: 400, 390, 410.
• Step 2: Find the largest number: 410.
• Step 3: Find the next largest: 400.
• Step 4: The smallest is: 390.
• Answer: 410, 400, 390.

6. Writing Numbers in Words: 1 – 100

We write numbers in words to show their names. It helps us read and understand numbers better.

Examples:

• 1 – One
• 2 – Two
• 3 – Three
• 10 – Ten
• 15 – Fifteen
• 20 – Twenty
• 25 – Twenty-five
• 50 – Fifty
• 75 – Seventy-five
• 100 – One Hundred

Teaching Methods/Instructional Techniques

Discussion, Lecture, Demonstration, Question and Answer, Visual Aids

Instructional Procedures

Whole Numbers 1 – 500

Step 1: Introduction

Time: 3 minutes
Teaching Skill: Set Induction
Teacher’s Activity: The teacher greets the pupils and asks them to count from 1 to 20. The teacher then tells them that today’s lesson will help them understand numbers even better.
Pupils’ Activity: Pupils respond to greetings and count from 1 to 20.
Learning Point: Pupils recall previous knowledge of counting.

Step 2: Collecting, Sorting, and Classifying Objects

Time: 7 minutes
Teaching Skill: Demonstration/Activity
Teacher’s Activity: The teacher provides different objects (e.g., bottle tops, small stones, leaves) and demonstrates how to collect, sort them by colour or size, and then classify them. The teacher guides pupils to do the same in small groups.
Pupils’ Activity: Pupils collect, sort, and classify the provided objects in groups.
Learning Point: Pupils learn practical skills of collecting, sorting, and classifying objects, which builds understanding of grouping.

Step 3: Identifying and Reading Numbers 1-500

Time: 8 minutes
Teaching Skill: Visual Aids/Questioning
Teacher’s Activity: The teacher uses number charts and flash cards to display numbers from 1 to 500. The teacher points to various numbers and asks pupils to identify and read them aloud.
Pupils’ Activity: Pupils identify and read numbers shown on the flash cards and number charts.
Learning Point: Pupils learn to recognize and pronounce numbers up to 500 correctly.

Step 4: Writing Numbers 1-500

Time: 7 minutes
Teaching Skill: Demonstration/Practice
Teacher’s Activity: The teacher writes some numbers (e.g., 125, 304, 489) on the board and demonstrates how to write them correctly. The teacher then asks pupils to write various numbers from 1 to 500 in their notebooks.
Pupils’ Activity: Pupils practice writing numbers in their notebooks as guided by the teacher.
Learning Point: Pupils develop the skill of writing numbers accurately.

Step 5: Ordering Numbers 1-500

Time: 6 minutes
Teaching Skill: Guided Practice
Teacher’s Activity: The teacher writes sets of numbers on the board (e.g., 200, 150, 230 and 450, 400, 480) and guides pupils to arrange them in ascending and descending order.
Pupils’ Activity: Pupils arrange the given numbers in ascending and descending order.
Learning Point: Pupils learn to compare and order numbers correctly.

Step 6: Writing Numbers in Words 1-100

Time: 5 minutes
Teaching Skill: Explanation/Practice
Teacher’s Activity: The teacher explains how to write numbers in words by giving examples from 1 to 100 (e.g., “1” is “One”, “20” is “Twenty”, “55” is “Fifty-five”). The teacher asks pupils to practice writing some numbers in words.
Pupils’ Activity: Pupils write numbers in words as instructed by the teacher.
Learning Point: Pupils learn to convert numerical digits into their word forms.

Step 7: Evaluation/Review

Time: 5 minutes

Teaching Skill: Questioning/Assessment

Teacher’s Activity: The teacher evaluates the learning by asking the following questions:

1. Collect 5 objects, sort them by colour, and tell me how many are in each group.
2. Identify and read the number 372 from the flash card.
3. Write the number “Four hundred and sixteen” in digits.
4. Arrange these numbers in ascending order: 250, 100, 300.
5. Write the number 85 in words.

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Pupils demonstrate understanding of the lesson.

Step 8: Conclusion

Time: 4 minutes
Teaching Skill: Summarization
Teacher’s Activity: The teacher summarizes the lesson by reiterating the importance of knowing whole numbers and how they are used in everyday life. The teacher assigns homework for pupils to practice counting and writing numbers 1-500.
Pupils’ Activity: Pupils listen to the summary and copy their homework.
Learning Point: Pupils consolidate their learning and prepare for further practice.

Home Task: Solve two new exercises on Whole Numbers 1 – 500. Show each step and check each answer.

Lesson Keywords

• Whole Numbers – Numbers without fractions or decimals (e.g., 0, 1, 2, 3…).
• Collect – To gather objects together.
• Sort – To arrange objects into groups based on shared features.
• Classify – To name or categorize groups of sorted objects.
• Identify – To recognize and name something.
• Order – To arrange numbers in a sequence (ascending or descending).
• Digits – The symbols used to write numbers (0, 1, 2, 3, 4, 5, 6, 7, 8, 9).
• Words – Writing numbers using letters (e.g., “One”, “Two”).

Differentiation

For pupils who are struggling, the teacher will provide more one-on-one support, use smaller number ranges (e.g., 1-100), and provide more physical counters. For advanced learners, the teacher will challenge them with larger numbers or more complex ordering tasks.

Note for teachers using this lesson plan

Ensure a variety of physical objects are available for the sorting and classifying activity. Use clear and large number charts and flash cards. Encourage pupils to count aloud frequently. Provide ample opportunity for handwriting practice, paying attention to neatness and correct formation of numbers. Circulate around the classroom during activities to provide individual support and feedback.