Leyendas prehispánicas mexicanas

Huracanes y tornados is one book in the Spanish-language Gran Atlas de la Ciencia series that covers today's most popular science topics, from digital TV to microchips to touchscreens and beyond. Perennial subjects in earth science, life science, and physical science are all explored in detail. Amazing graphics--more than 1,000 per title--combined with concise summaries help students understand complex subjects. Correlated to the science curriculum in grades 5-9, each title also contains a glossary with full definitions for vocabulary.

While the Great Depression was indisputably a difficult period in American history, it did lead to certain developments that we still benefit from today. One for the most significant examples of this is Social Security, which helps a whole generation of retired Americans. The book offers a concise description of the Great Depression, including analysis of its causes and its effects. Chapters focus on different aspects of the period, including culture, the arts, and science and technology. The dynamic design displays images of posters and experiences from the Depression era. This informative,...

Frogs and toads are some of the most confusing amphibians to classify. While some of their physical attributes are easy to tell apart, if we take a deeper look at these animals we find it’s not quite that simple. From poisonous skin and bulging eyes to their amazing life cycles, these creatures are as interesting to study as they are difficult to categorize. Once we break down the difference between “true” frogs and “true” toads, it’s easy to see why so many have trouble telling the two creatures apart!

La Didáctica se ocupa de la búsqueda del conocimiento necesario para la comprensión de la práctica pedagógica, y de la elaboración de formas adecuadas de intervención, de modo que el proceso de enseñanza-aprendizaje se realice de manera tal que haga viable, de hecho, el aprendizaje de la mayoría de la población -aún persisten los alarmantes índices de fracaso, absentismo y repetición de curso en los primeros años de la Educación Primaria-. A partir de esta óptica, se hace urgente promover unas revisión crítica de la enseñanza y la investigación en Didáctica e indicar...