Session 34: Composite Numbers

Introduction Activity (30 minutes)

Guess My Number (15 minutes )

"Guess My Number" is a math-related game where one person thinks of a number between 1 and 100 and gives hints about its properties, such as "My number is odd" or "It's a multiple of 3." Students take turns guessing the number, and after each guess, they receive a hint, like "Too high" or "You're getting closer." The game continues until someone correctly guesses the number. 

promoting critical thinking, problem-solving, and mathematical reasoning in a fun and engaging way.

Composite Number:- Define ( 15 minutes )

A composite number is a natural number greater than 1 that has more than two factors. This means it can be divided evenly by numbers other than 1 and itself.

For example:

4 is composite because its factors are 1, 2, and 4.

6 is composite because its factors are 1, 2, 3, and 6.

In contrast, a prime number has only two factors: 1 and itself (e.g., 2, 3, 5, 7).

Main Activity (55 minutes) 

Composite Quest  ( 45 minutes )

Each child receives a card with the numbers 1 to 100 written on it. They are then instructed to circle the composite numbers. The first child to complete the task wins.

Review Questions (10 minutes)

Fill in the Blanks

1. A composite number has at least ___ factors.
2. The smallest composite number is ___.
3.  ___ is the only even prime number and not a composite number.

Follow up Tasks(5 minutes)

Home work

Application Question 
Think of a real-life example where knowing about composite numbers might help (e.g., arranging desks, dividing chocolates). Write 2-3 sentences about it.

Expected Learning  Outcome:

Knowledge building-

• Understand factorization

• Differentiate Prime and Composite numbers 

Skill Building-

• Critical thinking

• Pattern recognumbers

• Speed and accuracy