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Age 16 to 18 Challenge Level:

This poster is based on the problem Overarch.

The poster is available as a pdf.


The poster should automatically open in your browser.

 This poster is also available as a .png image file by clicking here.
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.