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.

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Year 1

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.

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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.

Common misconception

If using slides, not recognising objects have been rearranged and counting all again.

Gather objects to manipulate so that children can clearly see that none have been added or taken away.

Keywords

The same - The same means that something is equal to something else or has no differences.
None - None means the same as nothing or not having changed something.
Some - Some means a number of things.

Set up the ideas within the slides practically, and try using a puppet who may challenge that the amount of objects is not the same once they have been moved.

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).