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Number and algebra

  • The Number System and Place Value
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  • Properties of Numbers
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  • Algebraic expressions, equations and formulae
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Geometry and measure

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  • 3D Geometry, Shape and Space
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Probability and statistics

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Working mathematically

  • Thinking mathematically
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Advanced mathematics

  • Decision Mathematics and Combinatorics
  • Advanced Probability and Statistics
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For younger learners

  • Early Years Foundation Stage

Being Resilient - Primary Geometry

Inside Triangles

Age 5 to 7
Challenge Level Yellow star

How many different triangles can you draw on the dotty grid which each have one dot in the middle?

Four Triangles Puzzle

Age 5 to 11
Challenge Level Yellow star

Cut four triangles from a square as shown in the picture. How many different shapes can you make by fitting the four triangles back together?

Nine-pin Triangles

Age 7 to 11
Challenge Level Yellow star

How many different triangles can you make on a circular pegboard that has nine pegs?

Estimating Angles

Age 7 to 14
Challenge Level Yellow star

How good are you at estimating angles?

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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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