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Two and One

Age 5 to 7
Challenge Level Yellow starYellow starYellow star
  • Problem
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It might help to find three balls so that you can try playing the game with a friend. What happens?
Is it important that there is only red ball but two blue balls?

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Three Ball Line Up

Use the interactivity to help get a feel for this problem and to find out all the possible ways the balls could land.

Birds in the Garden

This activity asks you to collect information about the birds you see in the garden. Are there patterns in the data or do the birds seem to visit randomly?

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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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