This is a fun expansion to building shapes. Why not wrap them with a bubble solution and see the new shapes that occur. This is an idea from clever Kerry Cue http://mathspig.wordpress.com/tag/make-your-own-cubic-bubble/
Maths Cube Bubbles
Published by makingpi
Our interest is to create a brilliant practical applied maths programme for teaching students who struggle with engaging in Maths. Our interests range from building bridges to making beautiful silver objects. View more posts