Tangrams are an extremely versatile manipulative that can be used to develop many different mathematics concepts. Unfortunately Tangrams are often just toyed with. This 48 page book shows how Tangrams may be used to develop deep knowledge of many geometric principles as well as some fractional understanding. Clear teacher notes and answers are provided to back up the tasks and activities in this book.This book intends to elevate Tangrams from toy status to that of a serious piece of maths equipment. Age 8 to 13.