Identify the missing part using knowledge of relationships and structures

I can identify the missing part using knowledge of part whole relationships and structures.

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Year 6

Identify the missing part using knowledge of relationships and structures

I can identify the missing part using knowledge of part whole relationships and structures.

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Share activities with pupils

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Lesson details

Key learning points

A representation helps to identity the parts and wholes.
A representation helps to identify a missing part.
A representation helps to identify the calculation needed to find the missing part.

Keywords

Equivalent - Two or more things are equivalent if they have the same value.
Solution - A solution is a value, or set of values, that can be put in place of an unknown which makes the equation true.

Common misconception

Pupils think that the missing part(s) must be a different colour rod to those parts already used within the example.

Provide pupils with various examples, in particular examples where there are two or more of the same part, drawing on the repeated addition/multiplicative structure not just the additive structure.

Ensure you are explicit about the number of parts each whole is made up of when asking pupils to find the missing part(s). Pupils may find multiple solutions if this is not clear and therefore not work towards the initial generalisation.

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).