Mathematics

Intermediate

50 mins

Teacher/Student led

Learning Goals

Learning Outcomes

Lesson Files

+80 XP

What you need:
IWB/Projector/Large Screen

Multiplication: Equal Groups and the 2, 4 and 10 Tables

Learn to count equal groups quickly using multiplication. Discover the patterns the 2, 4 and 10 times tables make on a hundred square, and explore why all their answers are even numbers.

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

1 - Getting Started ~4 mins

Illustration for Getting Started Look at these four hurleys on the screen. Each one has two grip bands wrapped around the handle. Hands up: how could we count how many grip bands there are altogether, without pointing at every single one?

Key point

There are four groups, and every group has the same number in it: two. When the groups are all the same size, there is a quick way to count them, and that is what we will learn today.

👇 Mark your steps as done as you complete them.

+5 XP

2 - Watch and Notice ~10 mins

The hundred square shades the count for you: first twos, then tens, then fours. Read each count aloud and watch which numbers light up and what shape they make on the grid. Before the tens appear, predict how many columns you will see.

👇 Mark your steps as done as you complete them.

+10 XP

3 - Try It Together ~9 mins

Now we shade the counts one table at a time on the board: first the multiples of 2, then the multiples of 10, then the multiples of 4. One pupil comes up and shades on the board while the rest of us watch and skip-count aloud together to check the total, and we read off the multiplication fact it shows.

Tip

Watch what stays the same and what changes as we move from one table to the next, so you can predict the pattern before it appears.

Shade the tables together

+15 XP

4 - Write the Tables in Your Copy ~6 mins

COPYBOOK MOMENT

First watch one full table written on the board so you can see the method: start at the top with 1 × 2 = 2, then under it 2 × 2 = 4, and keep going one fact under the other until 10 × 2 = 20. That is the 2-times table written in full.

In your maths copy, write the 2-times table in full the same way, one fact under the other, all the way to ten twos. Beside it write the 4-times table in full, and beside that write the 10-times table in full, each all the way to ten.

Now look at the 2s and the 4s carefully and ring every answer in the 2s that also appears in the 4s.

+10 XP

5 - Class Challenge ~8 mins

Key point

Today we work through these shading challenges together at the board, one after another: shade the multiples of 2, then the multiples of 10, then the multiples of 4, and finally shade the multiples of 4 again , remembering that every multiple of 4 is also a multiple of 2. Each one is a little harder than the last, so predict where the shading will land before we check.

Shade the tables

+15 XP

Pupil practice

Module 2 · The Four Operations: Mental and Written Number

Lesson 21 · Multiplication: Equal Groups and the 2, 4 and 10 Tables

Download Activity Book page (PDF)

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