Find a missing part when one part and the whole is known
I can find the missing part when the other part and the whole is known.
Find a missing part when one part and the whole is known
I can find the missing part when the other part and the whole is known.
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Lesson details
Key learning points
- Each of the numbers one to five can be partitioned into two or more parts.
- If one part is known, the other part can be found.
- Know what to do when the known part is zero or the missing part is zero.
Keywords
Partition - Partition means to split up a whole into parts.
Part-part-whole model - A part-part-whole model is a pictorial representation that shows the whole and its parts.
Missing part - A missing part means one of the parts that cannot be seen.
Common misconception
Children may add the whole and one part to find the missing part.
Encourage the use of the stem sentence ___ is the whole, ___ is a part and ___ is a part, to reinforce what the numbers represent.
To help you plan your year 1 maths lesson on: Find a missing part when one part and the whole is known, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 1 maths lesson on: Find a missing part when one part and the whole is known, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
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The assessment exit quiz will test your pupils' understanding of the key learning points.
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Explore more key stage 1 maths lessons from the Composition of numbers 0 to 5 unit, dive into the full secondary maths curriculum, or learn more about lesson planning.
Licence
Lesson video
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Starter quiz
6 Questions
Exit quiz
6 Questions
