Subitising/ Part-part-whole – Step 5

  • Where are they now?

    Recognises 10 of these is 1 of those
    (ten as a composite or countable unit via bundling)

    Subitises to 20 where there is a clear group of 10.

  • Where to next?

    Identifies collections of tens and ones to 50 without counting

  • Purpose

    When students associate mental images of dot patterns or collections of objects with numbers (either stated orally or written), they are more likely to understand that maths is about quantities and not just memorising word patterns.

Activities and Assessments (designed to move students from step 5 to step 6)

See-Say Bingo

Focus: Developing automaticity in identifying how many objects are in a collection – Identifying the total of a mixed collection of 10s and 1s up to a total of 50.

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    Bingo instructions

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    Bingo Cards


Subitising Probe Task

Diagnostic assessment task suitible for indiviual students or small groups

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    Subitising Probe task (instructions and BLMs)

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    Subitising 10s and 1s