# Calculate the value of parts and wholes using understanding of division

I can calculate the value of a part and a whole using understanding of division and knowledge of division facts.

# Calculate the value of parts and wholes using understanding of division

I can calculate the value of a part and a whole using understanding of division and knowledge of division facts.

## Lesson details

### Key learning points

- The whole can be a set of objects.
- To calculate the value of a part, we need to divide the whole by the number of equal parts.
- To calculate the the number of equal parts, we need to divide the whole by the value of each part.
- To calculate the whole, we need to multiply the number of equal parts by the value of each part.
- Drawing a bar model helps us to visualise the problem.

### Common misconception

Children may struggle to make connections between division and the value of a part.

Support children to understand and describe what they know from the information given, for example, the whole, the size of a part, or the number of parts. Also, what it is that they are trying to find. Encourage representation as a bar model.

### Keywords

Divide - When we divide, we split something into equal parts or groups. We use the ÷ symbol to mean divide.

### Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

## Video

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## Starter quiz

### 6 Questions

3

4

10

2

5