Sir Cumference and the Dragon of Pi book cover image

Sir Cumference and the Dragon of Pi

  • 795

By: Cindy Neuschwander / Illustrated by: Wayne Geehan

Can Radius save Sir Cumference from a fire-breathing fate?

Sir Cumference, Lady Di of Ameter, and Radius are back in their second Math Adventure! This time, a potion has changed Sir Cumference into a fire-breathing dragon. Can Radius change him back?

Join Radius on his quest through the castle to solve a riddle that will reveal the cure. It lies in discovering the magic number that is the same for all circles. This magic number, pi, will restore Sir Cumference to his former shape.

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Author & Illustrator Bios:

Cindy Neuschwander, author

Cindy Neuschwander is a native Californian, but she has lived in many places, including Germany, England, Austria, and Hawaii. As a mathematics education specialist, Cindy sought ways to make math fun, interesting, and comprehensible to her students. In 1992, while living in England, Cindy began working on her first book with this goal in mind. Sir Cumference and the First Round Table took five years to reach publication, but it remains a very popular book for its presentation of math concepts as well as for its amusing and exciting story. It has been followed by further adventures of Sir Cumference and his family. In her spare time, when she isn't writing or dreaming up new math adventures, Cindy enjoys activities with her family.

Read more about Cindy.

Wayne Geehan, illustrator

Wayne Geehan, a graduate of the Art Institute of Boston, has been illustrating books, board games, and jigsaw puzzles for over 20 years. When he isn't painting in his Massachusetts studio, he enjoys being with his family, reading, and researching his family's genealogy.

Read more about Wayne.


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ISBN: 978-1-57091-164-4

ISBN: 978-1-60734-556-5 EPUB
ISBN: 978-1-60734-151-2 PDF
For information about purchasing e-books, click here.

Ages: 8-12
Page count: 32
8 1/2 x 9 1/2

If you like this book, you’ll enjoy these:
The Sir Cumference Math Adventure series