# Identify the quantity shown in a representation of numbers 11 to 19

I can identify the quantity shown in a representation of numbers 11 to 19

# Identify the quantity shown in a representation of numbers 11 to 19

I can identify the quantity shown in a representation of numbers 11 to 19

## Lesson details

### Key learning points

- The numbers 11-19 can be formed by combining a ten and ones.
- The numbers 11-19 can be partitioned into a ten and ones.
- Tens frames can be used to represent the numbers 11 to 19

### Common misconception

Pupils use one to one correspondence to count all rather than counting on from a group of 10 to identify a teen number.

Provide concrete and pictorial examples where it is more difficult to count the ones in a group of 10 e.g. a bundle of straws or box of pencils. Encourage pupils to use the phrase 'one ten and ...' to focus attention on counting on from 10

### Keywords

Partition - Splitting an object or value into smaller parts.

Tens - A ten is a group of 10 ones.

Ones - Individual objects, grouped in ones.

### 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

## Exit quiz

### 6 Questions

3 ones

5 ones

8 ones