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For younger learners

  • Early Years Foundation Stage

A Bag of Marbles

Age 5 to 7
Challenge Level Yellow starYellow star
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bagofMarbles

Suppose that in a bag of marbles, all the ones that -

are rough to feel, have a blue colour on them;

sparkle when rolling, have a red colour on them;

are cold to touch, have a white colour on them;

are dark inside, have a green colour on them.


What can you say about each of the marbles A - J?

10 marbles

Imagine you are making marbles. What colours must be put on marbles that -


sparkle when rolling but are dark inside?

are cold to touch and feel rough?

are cold, but sparkle when rolling?


What colour(s) could be on a marble that -

is cold?

sparkles when rolling?


What colours would you find on a cold, sparkly, dark and rough marble?

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Odd Times Even

This problem looks at how one example of your choice can show something about the general structure of multiplication.

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The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.

NRICH is part of the family of activities in the Millennium Mathematics Project.

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