Edited by Anne Watson, this is a fantastic collection of readings on the subject of Variation.
The word 'variation' has become a new buzzword for mathematics teachers, but it is not a new idea. Variation is embedded in mathematics. It is an old idea that pops up again and again when people think deeply about the teaching and learning of mathematics.
This book is for anyone involved in teaching mathematics, at whatever level, and grounds current ideas in the wisdom and experience of four decades of ATM. It is a collection of writing originally published in Mathematics Teaching (the journal of the ATM), organised into five sections, each focusing on how teaching shapes experience:
KS1, KS2 KS3 KS4