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  • Early Years Foundation Stage

Belt

Age 16 to 18
Challenge Level Yellow star
  • Problem
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Why do this problem?

It provides experience of geometrical thinking,applying only the geometry of right angles triangles and the formula for arc length.

Possible approach

Sugggest the learners draw a neat diagram and mark in everything they know and can deduce from the diagram.

Key question

How do we split the belt into sections for which the lengths can be calculated?


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Imagine a rectangular tray lying flat on a table. Suppose that a plate lies on the tray and rolls around, in contact with the sides as it rolls. What can we say about the motion?

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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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