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Shapes on the Playground

Age 7 to 11
Challenge Level Yellow starYellow star
Primary curriculum
  • Problem
  • Getting Started
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Why do this problem?

This problem is one that would be suitable for learners who are looking at measurement, regular polygons or revising the addition and subtraction of numbers to 100. It requires logical thinking and careful reading of the questions asked.

Key questions

How long are each of the sides of every shape?
What is the perimeter of a hexagon/square/triangle/octagon?

What shapes does the problem say Ben drew?

Possible extension

Learners could make a table of their results.

Possible support

Suggest starting by drawing each the shapes and writing underneath how many metres the perimeter of each would be.

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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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