Angles - July 2005, Stage 1&2

Problems

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Right Angle Challenge

Stage: 1 Challenge Level: Challenge Level:2 Challenge Level:2

How many right angles can you make using two sticks?

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Sweeping Hands

Stage: 2 Challenge Level: Challenge Level:1

Use your knowledge of angles to work out how many degrees the hour and minute hands of a clock travel through in different amounts of time.

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Chippy's Journeys

Stage: 2 Challenge Level: Challenge Level:1

Chippy the Robot goes on journeys. How far and in what direction must he travel to get back to his base?

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Nine-pin Triangles

Stage: 2 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

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

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Triangles All Around

Stage: 2 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

Can you find all the different triangles on these peg boards, and find their angles?

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Triangle Pin-down

Stage: 2 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

Use the interactivity to investigate what kinds of triangles can be drawn on peg boards with different numbers of pegs.

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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