Solving calculations efficiently
I can explain how to solve calculations efficiently.
Solving calculations efficiently
I can explain how to solve calculations efficiently.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- Fluent calculation requires flexibility to move between mental and written methods and supports us to be efficient.
- Looking at the numbers within a calculation supports us to know whether to use a mental strategy or written method.
- Mental strategies work best when known facts are used.
- Written methods work best when the numbers given are precise or when exchanging is involved.
Keywords
Efficient - Being efficient means finding a way to solve a problem quickly whilst also maintaining accuracy.
Precise - Being precise is being exact. In this case, it is when numbers are given as exact values and are not rounded.
Common misconception
Children may automatically use a formal written algorithm. Children may not see the difference between, 'How much more?' and 'How many times more?'
What do you notice about the numbers? Is there a more efficient way? Can you represent this in a bar model or form an equation. What do you notice about the language?
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).
Lesson video
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