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.

Mathematics constitutes ideal material for exercising the art of learning and thinking. For this it is necessary that the classroom has a stimulating atmosphere which requires determined attitudes and beliefs. The book combines theory and practice and responds to questions such as these: to think in the mathematics class? on what does the knowledge of solving problems really consist of? what are the beliefs and which are the most common ones among the students? how to diagnose, evaluate and, in some cases to modify, the systems of beliefs of the pupil?).

Los minerales y los fósiles han despertado siempre una viva atención por la posibilidad de entender, a través suyo, cómo se originó nuestro planeta y qué sucedió en él hace millones de años. En cuanto a los minerales, su interés se puede centrar en su composición, estructura y utilidad, pero su coleccionismo (búsqueda, identificación, preparación y exposición) constituye una afición de alto valor pedagógico y, también, de disfrute. En estos dos sentidos, el apartado de minerales de este Atlas, resulta sumamente práctico y atractivo. En cuanto a los fósiles, resulta...

Many people take the Internet for granted. But there are places that lack Internet access. Being connected helps people connect, and new ideas are being developed and tested to bring the Internet to more of the world. This Spanish nonfiction book will keep students engaged in reading about Internet access as they build their literacy, vocabulary, and comprehension skills. Important text features include a glossary, index, and table of contents. The Reader's Guide and culminating activity require students to connect back to the text as they develop their higher-order thinking skills. Check It...

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.