Identidad y ciudadanía

“Dino” Don Lessem brings readers face-to-face with various dinosaur species, detailing their habitats, way of life and how they became extinct. An acclaimed dinosaur expert, Don Lessem has written more than 30 children’s books, writes a popular dinosaur column in Highlights magazine, and was an adviser for Jurassic Park. Take a trip through dinosaur time to meet these duck-billed dinosaurs face-to-face: Corythosaurus could honk through the top of its head! Gryposaurus had hundreds of grinding teeth! Parasaurolophus could smack enemies with its strong tail! Plus, you'll get to know...

La física y la química son dos ciencias fascinantes e imprescindibles para comprender el funcionamiento del mundo que nos rodea, pero que a menudo no han conseguido ser bien entendidas por los estudiantes. El propósito de este atlas es presentar la física y la química de forma clara, amena e interesante, huyendo siempre que sea posible de la carga matemática y de las fórmulas que no sean imprescindibles. En la elaboración de este libro se ha hecho un importante esfuerzo por simplificar las explicaciones y evitar la sobrecarga de datos, aunque se han subrayado datos curiosos y...

Una novela para sentirla y vivirla en imágenes, a modo de guión cinematográfico, listo para rodar. Una historia de máximo interés para los jóvenes de hoy.

What did people use to buy things before money was invented? Where is money made? Find out in this inviting book that informs readers about coins, paper money, the Federal Reserve, exchange rates, and checking accounts. Featuring a timeline of moneys history, detailed photos, stimulating facts, clear, informational text, and a glossary that will assist in improving vocabulary, this Spanish-translated nonfiction title will keep readers engaged from cover to cover.