# Count efficiently in groups of two, five and ten

I can count efficiently in twos, fives and tens, choosing the most appropriate unit to count in.

# Count efficiently in groups of two, five and ten

I can count efficiently in twos, fives and tens, choosing the most appropriate unit to count in.

## Lesson details

### Key learning points

- The amount in a group can tell you whether to skip count in twos, fives or tens.
- The pattern of the ones digits can help you recognise groups of two, five or ten.
- It is more efficient to count in groups of a larger size.
- When there are an equal number of groups, the larger the size of each group, the greater the amount altogether.

### Common misconception

Children may not be sure which unit to count in. They may confuse the size of the group with the number of groups, for example saying 5 groups of 2 instead of 2 groups of 5.

Encourage children to draw a ring around each group as they count the groups and display and use the stem sentence to help them describe this.

### Keywords

Tens - Another name for the multiples of ten.

Twos - Another name for the multiples of two or even numbers.

Fives - Another name for the multiples of five

Skip count - Counting forwards or backwards in a number other than one.

Efficiently - Not wasting time or effort. An efficient strategy is one we can carry out easily.

### 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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