Primeros Ejercicios de Calculo

A stinky look at the history of personal hygiene reveals fascinating facts, such as the invention of the toilet, how many times Queen Elizabeth I had a bath, how the first sewers were built, and much more.

Offers complete coverage of Chile, including sections on history, geography, wildlife, infrastructure and government, and culture.

What keeps objects from floating out of your hand? What if your feet drifted away from the ground? What stops everything from floating into space? Gravity. As in his previous books, Redwoods, Coral Reefs, and Island, Jason Chin has taken a complex subject and made it brilliantly accessible to young readers in this unusual, innovative, and very beautiful book.

Bestseller del New York Times y del USAToday Una exploración oportuna y crucial del racismo y el antirracismo en Estados Unidos Este NO es un libro de historia. Este es un libro sobre el aquí y el ahora. Un libro que nos ayudará a comprender mejor por qué estamos donde estamos. Un libro sobre la raza. El concepto de raza siempre se ha utilizado para ganar y mantener el poder, para crear dinámicas que separan y silencian. Esta notable adaptación del libro Stamped from the Beginning, del Dr. Ibram X. Kendi, ganador del National Book Award, revela la historia de las ideas racistas en...