New

New

Year 2

# Explain that one ten is equivalent to ten ones

I can explain that one ten is equivalent to ten ones.

New

New

Year 2

# Explain that one ten is equivalent to ten ones

I can explain that one ten is equivalent to ten ones.

## Lesson details

### Key learning points

- Ten ones are equal to one ten.
- One ten is equal to ten ones.
- Ten pennies are equal to one ten pence.

### Common misconception

Children may rely on counting in ones rather than recognise a group of ten.

Encourage children to recognise groups of ten in a variety of contexts. They may need to check one e.g. a bundle of 10 straws but then should be encouraged to use comparative size to know other groups are of equal size.

### Keywords

Ten - A group of ten objects.

Ones - Individual objects, grouped in ones.

Equal to - Exactly the same amount or value.

Reinforce the groups of ten by using the stem sentences: ten ones are equal to one ten, one ten is equal to ten ones, we have one group of ten, we have one ten.

Teacher tip

### 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

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### 6 Questions

Q1.

Say the count. What number will Laura say next?

20

30

Q2.

Say the count. Laura is counting backwards. What number will Laura say next?

Q3.

Say the count. What number will Laura say next?

Q4.

What number is being represented by the ten frames?

14

15

Q5.

Complete the sentence: 17 is one ten and ones.

Q6.

What is the value of the coins shown? pence.

## Exit quiz

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### 6 Questions

Q1.

Complete. This is a group of 10 because there are cubes.

Q2.

True or false? Both of the pictures show a group of 10

False

Q3.

Tick the examples which show a group of 10

Q4.

Complete the sentence. Ten __________ are equal to one ten.

tens

parts

Q5.

Which of these describes this coin?

It is worth one penny.

It cannot be made using pennies.

Q6.

Complete the sentence. Ten ones are equal to one .