Order and sort numbers into odd and even sets | Maths

Starter quiz

Which letter shows where 7 would be on this number line?
- a
- b
- c ✓
- d
9 has been placed on the number line. Is it in the right place?
- yes ✓
- no
Where should 6 be on the number line?
- a
- b ✓
- c
Is 2 or 7 closer to 5?
- '7' ✓
Alex wants to compare 3 and 8. Which sentences are correct?
- 3 is closer to 5 ✓
- 3 is closer to 10
- 8 is closer to 5
- 8 is closer to 10 ✓
Which of these are correct?
- 4 < 5 ✓
- 5 < 8 ✓
- 6 > 4 ✓
- 7 > 10

Exit quiz

Have these number shapes been sorted into odd and even sets correctly?
- yes
- no ✓
Which number shape does not fit this set?
- 2
- 3 ✓
- 6
- 8
Which number shape does not fit this set?
- 1
- 4 ✓
- 5
- 7
Which set should number shape 4 be in?
- A ✓
- B
Which set should number shape 5 be in?
- A
- B ✓
Which set would number shape 6 be in?
- 'A' ✓

Worksheet

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Presentation

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Lesson Details

Key learning points

We can group representations of numbers according to whether they are made of pairs or not.
Shapes representing numbers can be grouped according their shape and to whether they are made of pairs or not.
The language of odd and even can be used to describe numbers made of pairs or not made of pairs.
--- is made of -- pairs. It is an even number but --- is not made of pairs. It is an odd number.
Numbers can be sorted into odds and evens.

Common misconception

Children may see the pairs in odd numbers and think it is an even number.

Ensure children are looking for the extra one that makes a number odd. Provide opportunities to group other odd sets e.g. pairs of socks, pairs of hands / feet and realising an odd number always has an 'odd' one.

Keywords

Pair - Two together. Often with something in common.
Even - Any number that can be made of pairs. The last digit is 0, 2, 4, 6 or 8
Odd - Any number that cannot be made of pairs. The last digit is 1, 3, 5, 7 or 9