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Number and algebra

  • The Number System and Place Value
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Probability and statistics

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Working mathematically

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Advanced mathematics

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For younger learners

  • Early Years Foundation Stage

Problems with Many Solution Methods

Marbles in a Box

Age 11 to 16
Challenge Level Yellow starYellow star

How many winning lines can you make in a three-dimensional version of noughts and crosses?

Steel Cables

Age 14 to 16
Challenge Level Yellow star

Some students have been working out the number of strands needed for different sizes of cable. Can you make sense of their solutions?

How Old Am I?

Age 14 to 16
Challenge Level Yellow star

In 15 years' time my age will be the square of my age 15 years ago. Can you work out my age, and when I had other special birthdays?

Kite in a Square

Age 14 to 18
Challenge Level Yellow starYellow star

Can you make sense of the three methods to work out what fraction of the total area is shaded?

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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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