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Introducing chemical and biological concepts, this book explains what occurs in the body when a person plays, trains, or participates in an athletic event and allows the reader to understand that sports are not only a question of muscles, but of lungs, bones, chemical reactions, intelligence, and, naturally, a lot of heart.

Are you ready to embark on a wild counting caper? Imagine... eleven oysters at the opera, eighteen dalmatians dressed in diamonds, and twelve ladybugs shopping in the market! Meet an unforgettable host of zany creatures in this delightful bilingual counting book. Readers will encounter concepts such as color, time, size, shapes, and more as they answer questions relating to colorful cut-paper illustrations. Nancy María Grande Tabor's concise and direct questions encourage thinking while her charming characters entertain. In both Spanish and English, this unique counting book challenges...

Correlated to the science curriculum, our Spanish-language series describes how the types of homes that different animals build reflect adaptations to their environments. Through simple, easy-to-follow text, each volume looks at each type of home as a shelter from predators and weather and a place to store food and raise young. Young readers also learn how animal homes and human homes fulfill similar needs and functions.

This book is a comprehensive, practical presentation of the principles of behavior modification and guidelines for their application. It teaches forms of behavior modification ranging from helping children learn necessary life skills to training pets, to solving personal behavior problems.