New
New
Year 1

Order and sort numbers into odd and even sets

I can explain how numbers that are made out of pairs of 2 are even numbers and numbers that cannot be made out of pairs are odd numbers.

New
New
Year 1

Order and sort numbers into odd and even sets

I can explain how numbers that are made out of pairs of 2 are even numbers and numbers that cannot be made out of pairs are odd numbers.

Lesson details

Key learning points

  1. We can group representations of numbers according to whether they are made of pairs or not.
  2. Shapes representing numbers can be grouped according their shape and to whether they are made of pairs or not.
  3. The language of odd and even can be used to describe numbers made of pairs or not made of pairs.
  4. --- is made of -- pairs. It is an even number but --- is not made of pairs. It is an odd number.
  5. 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

Use a variety of representations of numbers to sort into odd and even and discuss what's the same and different about them. What makes an even number even? What makes an odd number odd? Encourage pupils to talk about pairs when discussing number shapes.
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).

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6 Questions

Q1.
Which letter shows where 7 would be on this number line?
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a
b
Correct answer: c
d
Q2.
9 has been placed on the number line. Is it in the right place?
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Correct answer: yes
no
Q3.
Where should 6 be on the number line?
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a
Correct answer: b
c
Q4.
Is 2 or 7 closer to 5?
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Correct Answer: 7, seven
Q5.
Alex wants to compare 3 and 8. Which sentences are correct?
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Correct answer: 3 is closer to 5
3 is closer to 10
8 is closer to 5
Correct answer: 8 is closer to 10
Q6.
Which of these are correct?
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Correct answer: 4 < 5
Correct answer: 5 < 8
Correct answer: 6 > 4
7 > 10

6 Questions

Q1.
Have these number shapes been sorted into odd and even sets correctly?
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yes
Correct answer: no
Q2.
Which number shape does not fit this set?
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2
Correct answer: 3
6
8
Q3.
Which number shape does not fit this set?
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1
Correct answer: 4
5
7
Q4.
Which set should number shape 4 be in?
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Correct answer: A
B
Q5.
Which set should number shape 5 be in?
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A
Correct answer: B
Q6.
Which set would number shape 6 be in?
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Correct Answer: A, a