Continentes de la Tierra (Earth’s Continents)

Computer science is all around us, at school, at home, and in the community. This book gives readers the essential tools they need to understand the computer science concept of testing. Brilliant color photographs and accessible text will engage readers and allow them to connect deeply with the concept. The computer science topic is paired with an age-appropriate curricular topic to deepen readers’ learning experience and show how testing works in the real world. In this book, a class makes a budget so they can afford a field trip at the end of the month. This nonfiction title is paired...

"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 the film Jurassic Park. Take a trip through dinosaur time to meet these deadly dinosaurs face-to-face: The Variraptor had pointy teeth with grooves like steak knives to saw through meat! The Draeomaeosaurus was the first raptor ever discovered. It had a very large brain! The Microraptor was ...

Illustrations and text present the history, geography, people, politics and government, economy, and social life and customs of Arizona, the Grand Canyon State.

"Toda verdadera filosofía debe ser realizable en la existencia humana. Filosofía de la Vida. En estas palabras está el anhelo más profundo de renovación de nuestra manera de pensar, intuir y vivir. Filosofía empapada en todos aquellos acontecimientos que hacen del hombre un ser eminentemente consciente de su finalidad social. Las mejores investigaciones de la Filosofía, han sido aquellas que han tratado de realizar la existencia humana en todas sus manifestaciones. Y puede decirse, sin exageración, que es más noble, más profunda y verdadera una filosofía cuanto más se acerca a la...