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Session 2: Number concept

Session Title 

Number concept  

Objective 
  1. Understand the concepts of whole numbers, natural numbers, even numbers, and odd numbers. 
  2. Identify and classify numbers into different types. 
  3. Apply simple methods to recognise and differentiate number types through engaging activities. 

Concepts

Number types help categorise numbers based on their properties: 

  1. Natural Numbers: Counting numbers starting from 1 (1, 2, 3...) 
  2. Whole Numbers: Natural numbers including 0 (0, 1, 2, 3...) 
  3. Even Numbers: Numbers divisible by 2 (0, 2, 4...) 
  4. Odd Numbers: Numbers not divisible by 2 (1, 3, 5…) 

Materials Required 

Board & Chalk, Number flashcards, Number line, Colored markers, Chart paper 

 

Methodology 

Activity-based Learning: Games, sorting, and movement. Experiential Learning: Applying number types to daily life scenarios. 

 

Session Duration

 120 Minutes

Introduction  Activity (15 minutes): 

NUMBER SORT CHALLENGE Place number flashcards 

(1–50) in a basket. Students pick one card at a time and run to the correct labeled section (Natural, Whole, Even, or Odd) on the classroom walls. Teacher checks and discusses the placement. 

Main Topic/ Activity:Interactive Number Grid (30 minutes) 

  1. Draw a large 1–100 number grid on the floor. 
  2. Call out number properties (e.g., "Step on an even number!" or "Find a number that is whole but not natural!") 
  3. Students respond by hopping on the correct numbers. 
  4. Discuss each response and reinforce definitions. 

Group Game: NUMBER BINGO (30 minutes) 

1.Prepare Bingo cards with a mix of number types. 

2.Call out clues like "An odd number under 20" or "A natural number that’s also even." 

3.Students mark the correct numbers on their cards. 

4.The first to complete a row shouts "Bingo!" and explains their answers. 



Number Bingo Clues & Answers


1. Clue: An odd number under 20

Answer: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19



2. Clue: A natural number that’s also even

Answer: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24



3. Clue: A number that is a multiple of 5

Answer: 5, 10, 15, 20, 25



4. Clue: A prime number under 20

Answer: 2, 3, 5, 7, 11, 13, 17, 19



5. Clue: A square number

Answer: 1, 4, 9, 16, 25



6. Clue: An even number greater than 20

Answer: 22, 24



7. Clue: A number between 10 and 15

Answer: 11, 12, 13, 14

8. Clue: A number that is both even and a multiple of 3

Answer: 6, 12, 18



9. Clue: A number that is one more than a multiple of 4

Answer: 5, 9, 13, 17, 21, 25



10. Clue: A number that ends in “3”

Answer: 3, 13, 23

Time to Solve (20 Minutes) 

Group activity: 

Provide a worksheet with a mix of numbers. 

Tasks include: 

Circle all even numbers 

Underline all odd numbers 

Tick the whole numbers 

Draw a star next to natural numbers 

Expected Learning  Outcome: 

Knowledge building-Concepts of natural, whole, even, and odd numbers. 

Differences and overlaps among number types. 

Skill Building- 

•Quick classification and recall 

•Critical thinking and observation 

•Team collaboration and accuracy 

Review Questions/Assessment/Tasks :What’s the smallest whole number? 

Is every whole number a natural number? 

Can a number be even and natural? 

Follow up Tasks: 

Homework: 

  1. Write all odd numbers from 1 to 50. 

  1. List 10 numbers that are both whole and even. 

  1. Create a table showing numbers from 1 to 20 classified into natural, whole, even, and odd. 

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