La Lupa y sus misterios

Readers will be amazed to discover that every time they climb onto bicycles and ride like the wind, they are defying gravity! This book explains the physics and history behind bicycles, skateboards, and surfboards. Readers learn what happens from the simplest movement of rolling forward to more complex tricks and stunts of jumping and spinning. Readers will never look at bikes, skateboards or surfboards the same way again.

Los Cuadernos Everest de Matemáticas son un excelente apoyo para trabajar los contenidos abordados en el área de matemáticas.

Esta obra es una antología que reúne catorce relatos con distintos protagonistas y situaciones y un tema común: la postración moral, la humillación, el acomodo a difíciles supervivencias, de gentes modestas para quienes la guerra civil española fue su herida central y su cicatriz decisiva. Los relatos van precedidos de un prólogo de Camilo José Cela, incorporado en la edición de 1977, y de un prólogo actual a cargo de José María Merino.

Roam the North American wilderness with some of our continent's most fascinating canines. Stunning color photos capture these wild animals in their natural surroundings as the text describes each canine's habitat, physical features, and special abilities. Explore the social lives of these captivating creatures, their amazing survival techniques, reproduction, development, and interaction with humans. Discussions of threats to habitat and hunting promote environmental awareness in young readers.