Matemáticas en el cinturón de asteroides (Math in the Asteroid Belt)

Mars is perhaps the most thrilling planet these days. With rovers exploring its surface and manned missions in the works, people are wondering if Mars is our next home! In this highinterest book, readers will learn more about Earth's neighbor, including what its climate and surface are like, why it's called the Red Planet, and about the recent discovery of water on its surface. They'll learn all this while solving "Your Mission" math problems that complement and support the text. This motivating volume is an engaging way to explore key aspects of science and math curricula.

A land of extremes, from active volcanic peaks to dense rain forests, Guatemala has sustained great civilizations and attracted foreign conquerors. While shadows of its vicious, decades-long civil war still linger, Guatemala's people work toward peace and stability in the face of corruption and impunity. Illuminating photographs, insightful facts, and informative sidebars help the reader discover what it's like to live in today's Guatemala, its ancient beginnings, dramatic landscape, rich culture, resilient people, and more.

Atrapante de principio a fin. Lleno de enseñanzas y reflexiones tan actuales como en el momento en que fue escrito (entre el 12 de junio de 1942 y el 1 de agosto de 1944). Ana Frank disecciona con total naturalidad y frescura la complejidad de las relaciones dentro y fuera de su núcleo familiar, al mismo tiempo que describe los cambios propios de la adolescencia, aunque matizados por la situación que le toca vivir: el Holocausto. Todo esto lo hace con una capacidad de introspección y una autocrítica admirables, lo que deja ver el verdadero genio detrás de esa gran escritora. Simplemente ...

Traducción de M. López Salvá. Intr. y notas de M. López Salvá y M. a A. Medel. Rev. : R. M. a Aguilar.

Imagine being lost and stranded in the desert. Would you know what to do to survive? This useful Spanish-translated nonfiction title explains the important skills needed to survive in the desert. With helpful diagrams and images, definitions, tips and instructions, informational text, a bibliography, and a list of other helpful websites, readers can be assured that they will learn about the dangers of heat exhaustion, desert plants that could aid in survival, and other helpful tips in order to survive in an emergency.