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  • Early Years Foundation Stage

Andy's Marbles

Age 7 to 11
Challenge Level Yellow starYellow star
Primary curriculum
  • Problem
  • Getting Started
  • Student Solutions
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How many marbles did Andy and Sam rescue?
How might this help you to work out the number of marbles which Andy had before the bag split?

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Cut it Out

Can you dissect an equilateral triangle into 6 smaller ones? What number of smaller equilateral triangles is it NOT possible to dissect a larger equilateral triangle into?

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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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