New from the author of the bestselling Words Are Categorical series comes this book that introduces basic math concepts to young readers. This first title covers the concept of addition and its key terms. Full color.

Cleary and Gable bring their trademark sense of humor to the subject of measuring length. A rhyming text filled with funny examples explains how to use and compare metric and U.S. customary units of length. Readers are also introduced to the tools they need to measure length--rulers, metersticks, and more. Full color.