On 29 June 2021 (as part of Maths Week London), Charlie and Liz presented Nim-7 and Daisy to classes around the world, and invited participants to send in their thoughts and solutions, some of which have now been published.
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.