Finding a half

Learning focus

Learn how to split objects in half and share amounts into two equal groups.

This lesson includes:

  • a catch-up quiz
  • one video
  • a learning summary
  • two activities

Quiz

To get started, let's see how well you know this topic already. Take the catch-up quiz below to find out.

Learn

First, watch this video that explores how to find a half of a shape or an amount.

Finding a half

Finding a half means finding one of two equal parts.

If you put two halves together you get one whole.

Example 1:

Layla and Bobbi want to share a pizza. How could they slice the pizza so they each get an equal piece?

If they cut it through the middle of the pizza, you can see that they each get an equal piece, or a half.

Now look at the pizzas below. You can see some different ways that they could have cut the pizza.

Which of these have been cut into halves correctly?

The two pizzas in the middle have been split into equal halves.

However, you can see that the first pizza and the last pizza have not been split equally, so they are not halves.

Finding half of an amount

You can find half of an amount of objects too.

To find half, you need to count how many in the whole first.

Then share the total number into two equal groups. Half is the number in one group.

Example 2:

Here are some apples. Can you count how many there are in total?

There are 12 apples in total.

How many apples make half of 12?

By sharing the apples into two equal groups, you can see there are 6 apples in each group.

Top tip

Count the total before you share into two equal groups.

Play

Play Karate Cats Maths to learn more about this topic and test your skills.

Can you win a new costume for your cat?

Game - Karate Cats Maths

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