Halve numbers and explain what halving means
I can halve numbers and explain what halving means.
Halve numbers and explain what halving means
I can halve numbers and explain what halving means.
Lesson details
Key learning points
- Halving is the inverse of doubling.
- Halving can be used to subtract a number from its double.
Common misconception
Children may struggle to see that halving is the inverse of doubling.
Only progress to this lesson once children are fluent in doubling numbers zero to five. Present the same visual (e.g. 3 apples + 3 apples) and use this to discuss doubling and halving, revealing and covering one of the two equal parts each time.
Keywords
Half - One of two equal parts of a whole.
Halving - To divide into two equal parts.
Doubling - To become twice as many.
Inverse - The opposite in effect.
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
6 Questions
Double 1 is 2
Double 4 is 8
3 plus 3 equals 6
Exit quiz
6 Questions
8 - 4 = 4
2 - 1 = 1
10 - 5 = 5