Mathematics Today Author:Janet S. Abbott This book is of copying masters - purple level - that goes with the textbook. This book is full of teaching aides such as place value charts, number lines, flash cards (addition, subtraction, multiplication and division through the 12's), graph paper of various sizes, 2-D shapes, nets for 3D shapes, letters to send home to parents for each topi... more »c covered in class, thermometers, rules, and lots more! It's a great resource for any teacher in the elementary grades!« less