商品簡介
Introduces the concept of subtraction, using toys to explain how to subtract any numbers within twenty and how to work with subtraction equations.
作者簡介
Jean Marzollo is the author of The Little Plant Doctor: A Story About George Washington Carver, and many award-winning books for children, parents, and teachers, including the I Spy series. She lives with her husband in New York State's Hudson Valley. Her website is www.jeanmarzollo.com.
Chad Phillips creates photographs for educational publishers and other clients. This is his first book. He lives in Connecticut with his wife and daughter.
