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The Root of the Problem

Find the sum of this series of surds.

Sums of Powers - A Festive Story

A story for students about adding powers of integers - with a festive twist.

Summing Squares

Discover a way to sum square numbers by building cuboids from small cubes. Can you picture how the sequence will grow?

Picture Story

Age 14 to 16
Challenge Level

The picture below shows how the slices of cube were arranged in the video.

A large square divided into smaller squares.

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