This book is the perfect read-aloud to introduce the concepts of circumference, diameter and radius. Students will be exposed to many other geometric shapes as well. Children of all ages will enjoy this mathematical adventure. Sir Circumference and his Knight work to solve a mathematical dilemma. What would be the best-shaped table for Sir Circumference to gather his knights? Will it be a square, rectangle, parallelogram or circle? You must read to find out. 32 pages