As part of my work at the University of Southampton I’ve created, with Rachel Warr and Chi Ying Lam, a toolkit based on Pythagoras’ Toolkit. I’m really proud of this resource, which is aimed at educators working with children aged roughly 7 to 11. This nifty video introduces it:

You can download the resource for free at this LINK
The project website is: https://www.southampton.ac.uk/research/projects/pythagoras-toolkit