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Whoosh

A ball whooshes down a slide and hits another ball which flies off the slide horizontally as a projectile. How far does it go?

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Dam Busters 1

At what positions and speeds can the bomb be dropped to destroy the dam?

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Escape from Planet Earth

How fast would you have to throw a ball upwards so that it would never land?

Dam Busters 2

Stage: 5 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

Physical units must match up in a physically meaningful equation.

If you sum two quantities then the units must also be the same.

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. More information on many of our other activities can be found here.
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NRICH is part of the family of activities in the Millennium Mathematics Project.