nA teachers book for math covering Mathematics in Nature, Pythagoras and Numbers, Platonic Solids and Rhythm and Cycles. Includes full color illustrations and diagrams throughout.n nA resource for Steiner-Waldorf teachers for math for Class 7 (age 12-13) and Class 8 (age 13-14).n nThis book is a combined edition of Mathematics Around Us (for Class 7) and Mathematics in Space and Time (for Class 8).n