# Show one more and one less than a number using representations and describe this accurately

I can recognise that the number before a given number is one less and the number after a given number is one more.

# Show one more and one less than a number using representations and describe this accurately

I can recognise that the number before a given number is one less and the number after a given number is one more.

## Lesson details

### Key learning points

- Movement is magnitude. As you move forwards through the counting sequence the quantity increases by one.
- Movement is magnitude. As you move backwards through the counting sequence the quantity decreases by one.
- Use a number line to model the counting sequence and include zero.

### Common misconception

Children may confuse one more and one less, particularly when finding missing numbers.

Use the stem sentence __ is one more / less than __ because it comes after / before it in the count.

### Keywords

One more - The number after a given number is one more than it.

One less - The number before a given number is one less than it.

Before - A number that is before another comes earlier in our count.

After - A number that is after another comes later in our count.

Number line - A line with numbers placed in their correct position.

### 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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