Inteligencia artificial: computadoras y máquinas inteligentes (Artificial Intelligence: Clever Computers and Smart Machines)

"This oversized book introduces children to the alarming number of species that are endangered, threatened or, unfortunately, extinct. It includes amphibians, birds, mammals, reptiles, and fish, devoting an entire page to each animal. Readers will learn the threats facing each one, where each one lives or lived, including the type of habitat, its diet, size, and ongoing conservation efforts."

Our closest solar system is about 10 light years away. It has two main types of planets. Some are rocky and small, like planet Earth, while others are huge balls of gas, like Jupiter. Learn about how astronomers once thought our solar system was the one and only, to how they have now discovered hundreds of stars with planets orbiting them, which means there could be billions of solar systems in outer space! Just maybe, these alien worlds could host life, like our own amazing planet. This book allows students to use observations of the Sun, moon, and stars to describe patterns that can be...

Sharing is a social skill all children need to learn. This book presents sharing as a positive choice, then describes four ways to share. It points out that sharing goes beyond things: children can also share their knowledge, their creativity, and their time. What if they don't want to share, or someone won't share with them? These topics are covered, too. Concrete examples and reinforcing illustrationshelp children practice sharing, understand how and why to share, and realize the benefits of sharing.

HernanCortes parte rumbo al Yucatan con la mision de auxiliar a la expedicion de Juan Grijalva que enviara el gobernadorde Cuba, Diego Velazquez, y de la cual no se habia vuelto a tener noticia. Noobstante, poco antes de la partida, el gobernador decide desposeerle del mando, pero Cortes consigue hacerse a lamar, y luego de vicisitudes sin cuento, se adentra en ignotos territorios dominados por los indios mexicas, cuyo emperador, Moctezuma, rige susvastos dominios desde la ciudad de Tenochtitlan.En un principio, Moctezuma cree saber queHernan Cortes es la encarnacion del diosQuetzalcoatl, "La ...