One activity was to see what animals we could draw from common shapes. I'd have gone for a slug or starfish but the boys were more ambitious and made some beautiful creatures. We made tracks, spirals and walls with jenga blocks with a side note on strength and stability.
For tessellation we played with the fab website at http://gwydir.demon.co.uk/jo/tess/tess.htm and created patterns inspired by Victorian tiling. To finish off, we looked at tessellation in nature, with a google image search bringing up wonderful examples in flowers, honeycombs and snakes.
A note on shapes - we had to look up the difference between a rhombus and a diamond :
https://www.quora.com/What-is-the-difference-between-a-rhombus-and-a-diamond
