Salvar a las aves migratorias

"Roberto has to watch his family's sheep, but he finds it boring. He tries to get what he wants by crying wolf. But what happens when there is real danger?"--

This nonfiction book explores the history, culture, customs, and beliefs of California's American Indian tribes including the Chumash, Tongva, Hupa, Yokuts, Quechan, and Coso tribes. Detailed primary source images in conjunction with Spanish text provide 3rd grade students with an inviting reading and learning experience as they build their social studies knowledge. This book includes basic informational text features including a glossary, an index, table of contents, and reader's guide. Students will be intrigued by Native American history with this fascinating nonfiction Spanish book.

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.

Todos los objetos, elementos o personas tienen una silueta que los define y que constituye su figura. Hay muchísimas figuras posibles, pero todas tienen unas particularidades que permiten identificarlas. Los 12 ejercicios del libro están pensados precisamente para trabajar las características de esas figuras haciendo, por ejemplo, la silueta de una silla con una serpentina, o construyendo la figura de una pelota a partir de diferentes trozos de papel rasgado. Asimismo, muchos de los ejercicios del libro se detienen en las propiedades de la figura humana para conocer sus partes más...

These titles look at many of the animals typically found in zoos, covering such topics as appearance, behavior, and babies. Vivid photographs compare the habitat and diet of each animal, both in the wild and the zoo.

¿Pueden funcionar los coches con chocolate en lugar de gasolina? ¿Cómo se forma el arcoíris? ¿Se te ocurren muchas preguntas curiosas? ¡Este libro está lleno de respuestas alucinantes! Sus divertidas ilustraciones y asombrosos datos exploran todo lo que tiene de atractivo, admirable y apasionante nuestro planeta Tierra.