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Junior Frogs

Have a go at this well-known challenge. Can you swap the frogs and toads in as few slides and jumps as possible?

Inky Cube

This cube has ink on each face which leaves marks on paper as it is rolled. Can you work out what is on each face and the route it has taken?

Area and Perimeter

What can you say about these shapes? This problem challenges you to create shapes with different areas and perimeters.

Escape from the Castle

Age 7 to 14
Challenge Level

In the first room, what do you know, or what can you discover, about opposite faces of a dice?
In the third room, can you use the diagram to find the radius of the circles?
It might help to have some dice, counters, numbered cards ... to use.
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.