Imaginación con René Descartes

Readers won't have to disassemble their favorite toys to discover what makes them work. This book explores electric, magnetic, and motion-powered toys from design to function. It introduces readers to the six simple machines and explains how they use force and motion to do work. Not every toy is a technological marvel. Readers learn about time-honored favorites including the rocking horse, Slinky, and rattles.

The author tells about the origin and development of two Spanish romances: The Alfambra woman buried alive and The lovers of Teruel. The first recounts the infidelity of a lecherous woman, the Countess of Alfambra, who betrays her husband by delivering him to his enemy; and whose final dénouement is the defeat of the adulterous couple and their being condemned to death by being burnt at the stake. The Story of the Lovers of Teruel recounts the tragic life of one of the members of the Marcilla family, enamoured of a rich damsel who returned his love. However, her father's refusal to consent...

Invite readers along on the preparations for a soccer tournament! With informational, Spanish-translated text, vibrant photos and charts, children are engaged from cover to cover while utilizing mathematical skills to increase understanding of all aspects of soccer, including sportsmanship and tournaments.

El Conocimiento del Medio nos ayuda a convertir nuestro mundo en un PLANETA AMIGO. Nos permite conocer la naturaleza, valorar nuestro entorno y desarrollar actitudes de respeto hacia otras culturas y otros pueblos. Con el Conocimiento del Medio podemos descubrir cómo somo, compartir con los demás nuestros conocimientos y construir entre todos un PLANETA AMIGo, en el que convivamos en un mismo entorno personas con diferentes formas de pensar.