Lo que va y lo que viene

“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...

Con la conquista de los cielos, el ser humano ha puesto a prueba su fisiología, llevando a su organismo hasta límites impensados. Con el avance en el vuelo, el cuerpo se ha visto cada vez más expuesto a diferentes situaciones que comenzaron a causar afecciones fisiológicas en todo su organismo. Cambios te presión, cambios de temperatura, exposición a radiación, entre otro. Fisiología aeronáutica es una obra dedicada al estudio y análisis de las principales afecciones a las que el organismo humano se ve expuesto durante las actividades u operaciones aéreas. Es importante que el...

In this fascinating biography, readers will learn about the amazing life of Eleanor Roosevelt as she strived for equality of all. Lively images and a timeline help show children Eleanor's inspiring journey as she grew from a young student in England to the First Lady of the United States to the first female member of the United Nations. The informational Spanish-translated text, supportive glossary, table of contents, and index work together with the bright images to give readers the tools they need to better understand the content.

The Grand Canyon is a "grand" place to learn data analysis! Through an examination of its rocks and fossils, students will learn data analysis while reading about a fun-filled trip to Grand Canyon National Park. This Spanish book uses real-world examples to teach math concepts, and incorporates nonfiction reading to increase vocabulary and comprehension skills. The challenging practice problems, graphs, and sidebars provide many opportunities for students to practice their developing math skills, and apply what they've learned to their daily lives. Essential text features like a glossary,...