El ciclo del nitrógeno (The Nitrogen Cycle)

"Soy cholo, mestizo, mezclado. Las palabras no te hieren si aprendes a ponerlas de tu lado. Úsalas tú antes que los otros. Soy indio, quechua, serrano. Vengo de las montañas y voy de regreso a ellas. Decirlo me ha dado energía. Ahora tengo los puños en alto. No soy tu cholo." No soy tu cholo es tanto un libro de protesta como una reflexión sobre la choledad. Su tono puede ser enérgico o calmo, pues varía según los recursos que emplea Avilés: en algunos casos será la indignación producto de la experiencia propia; en otros, el ensayo feroz que, desde el activismo cívico, reclama...

This historical novel will fascinate young readers as they learn about Mayan customs and lifestyle. A glossary of Mayan terms and authentic drawings will help children understand this highly advanced culture. Text copyright 2004 Lectorum Publications, Inc.

What has hairy paws, a fluffy tail, and huge and fuzzy ears? If you guessed a fennec fox, you're right! This book introduces early readers to a mystery animal by describing its features, one by one, using short simple sentences and eye-popping full-color photos. At the end of the book, the secret animal is revealed across a colorful, two-page spread. Young children will love showing off their beginning reading skills as they learn about this dazzling collection of wild and wonderful zoo animals--one clue at a time! Fast facts and habitat maps at the end of the book provide children with key...

Learn about the Earth and the Moon with this engaging Spanish science reader. With easy-to-read text, this book teaches students important scientific concepts and vocabulary including the phases of the Moon, the movement of the Earth around the sun, and the rotation of the Earth. Aligned to state and national standards, the book contains nonfiction text features like an index, a glossary, captions, bold font, and detailed images to keep students connected to the text. A hands-on science experiment helps students apply what they have learned and develops critical thinking skills.