书名：Step into Reading 4 - Ben Franklin and the Magic Squares

作者： Frank Murphy , Richard Walz 

出版社名称：Random House USA Inc

出版时间：2001

语种：英语

ISBN：9780375806216

商品尺寸：15.2 x 0.4 x 22.8 cm

包装：平装

页数：48 （以实物为准）

A funny, entertaining introduction to Ben Franklin and his many inventions, including the story of how he created the " magic square." A magic square is a box of nine numbers arranged so that any line of three numbers adds up to the same number, including on the diagonal! Teachers and kids will love finding out about this popular teaching tool that is still used in elementary schools today!

Frank Murphy has taught a wide variety of grades at the elementary and middle school level. A popular speaker, Murphy is the author of many fun historical fiction books for young readers. He lives in Holland, PA.

Richard Walz is the illustrator of many humorous historical Step into Reading books. He lives in Northampton, Massachusetts.