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Well, what a lovely surprise! I wrote this activity over three years ago and had more able pupils in mind. How lovely to get an email in February 2014 from Jess and Casey who are in Year 4 at The Globe Primary, Lancing, West Sussex in the U.K.
Well done Jess and Casey, that's really good work, I wonder how long it took you? I really hope you enjoyed the journey of solving it!


This is what they sent:


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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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