Here is a Waldorf teachers' book for math. Its contents include:
"Mathematics in Nature"
"Pythagoras and Numbers"
"Rhythm and Cycles"
Full-colour illustrations and diagrams throughout Mathematics in Nature, Space, and Time is a Waldorf teacher resource for math in class 7 (ages 12-13) and class 8 (ages 13-14). This new edition combines two previously published handbooks: Mathematics around Us and Mathematics in Space and Time.