Conservation
I can explain that when a number of objects has been rearranged, the amount stays the same, as long as nothing has been added or taken away.
Conservation
I can explain that when a number of objects has been rearranged, the amount stays the same, as long as nothing has been added or taken away.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- Recognise amounts that have been rearranged.
- Generalise that if nothing has been added or taken away, then the amount is the same.
Keywords
Same - Way in which two or more things we are comparing are like each other.
None - None means the same as nothing or not having changed something.
Some - Some means a number of things.
Common misconception
If using slides, not recognising objects have been rearranged and counting all again.
Gather objects to manipulate (either under a visualiser with the whole class, or in front of a small group) so that children can clearly see that none have been added or taken away.
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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