Explain that one ten is equivalent to ten ones | Maths

Starter quiz

Say the count. What number will Laura say next?

20

30

40 ✓
Say the count. Laura is counting backwards. What number will Laura say next?

'60' ✓
Say the count. What number will Laura say next?

'80' ✓
What number is being represented by the ten frames?

13 ✓

14

15
Complete the sentence: 17 is one ten and ______ ones.

'7' ✓
What is the value of the coins shown? ______ pence.

'30' ✓

Exit quiz

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

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

True ✓
False
Tick the examples which show a group of 10
Complete the sentence. Ten __________ are equal to one ten.

ones ✓

tens

parts
Which of these describes this coin?

It is equal to ten ones. ✓

It is worth one penny.

It is the same as 10 one-pennies. ✓

It cannot be made using pennies.
Complete the sentence. Ten ones are equal to one ______.

'ten' ✓

Worksheet

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Presentation

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Video

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.