Mathematics

Intermediate

50 mins

Teacher/Student led

Learning Goals

Learning Outcomes

Lesson Files

+80 XP

Teacher-led from the board. Pupils do not need a device, but can follow on one.

What you need:
IWB/Projector/Large Screen

Factors, Multiples, Primes and Composites

Explore factors, multiples, primes and composites using a hundred square. Discover how factors pair up, recognise patterns in multiples, and use factor-counting to classify numbers.

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1 Getting Started
2 Watch and Notice
3 Try It Together
4 List Factors and Multiples in Your Copy
5 Class Challenge
6 What Did We Notice?
7 What's Next
Pupil practice

Your turn

Your teacher is running this lesson on the board. Here is the part you can try yourself.

Your written work is on page 23

Hundred square

1 - Getting Started ~4 mins

Illustration for Getting Started Here is a number to think about: 12. Name every whole number that divides into 12 with nothing left over. Hands up when you have one.

👇 Mark your steps as done as you complete them.

+5 XP

2 - Watch and Notice ~9 mins

The hundred square shows three different shading patterns, one after another. Look at which numbers are shaded in each pattern and look for what the shaded cells have in common.

👇 Mark your steps as done as you complete them.

+10 XP

3 - Try It Together ~8 mins

Today we work on one grid at the front of the class together: shade all the multiples of 4, then all the multiples of 8. What do you notice about where the two patterns overlap? Then we'll shade the factors of 36 and count how many there are.

Shade the multiples and factors

+15 XP

4 - List Factors and Multiples in Your Copy ~3 mins

COPYBOOK MOMENT

In your maths copy, for each number below write its full factor list, then list its first five multiples. Finally, mark each number as prime or composite.

+10 XP

Pupil practice

Module 2 · Operations and Computational Fluency Number

Lesson 24 · Factors, Multiples, Primes and Composites

Download Activity Book page (PDF)

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