THIS EDITION IS INTENDED FOR USE IN SCHOOLS AND LIBRARIES ONLY. When Sir Cumference drinks a potion which turns him into a dragon, his son Radius searches for the magic number known as pi, which will restore him to his former shape.
Cindy Neuschwander is a mathematics educational specialist. A native Californian, Cindy has lived all over the world. She received a B.A. in International Studies and an M.A. in Education at Stanford University. She currently teaches third grade. Cindy was inspired to write Sir Cumference while living and traveling in England. Besides the Sir Cumference series, Cindy is the author of Amanda Bean's Amazing Dream, 88 Pounds of Tomatoes, The Chocolate Champs.
Cindy lives in California with her husband and two sons.



