Exploremos los minerales de la Tierra (Exploring Earth's Minerals)

When winter hits, many people in colder climates spend most of their time indoors. But what do wild animals do? Some animals spend winters hibernating. Beginning readers will learn what hibernation is, why some animals hibernate and others don't, and how hibernating animals prepare for their long sleep. Full-color photographs grab readers' attention and allow them to draw connections to the narrative. Readers will love learning about this mysterious, restful time in some animals' lives.

Diwali is a holiday known as India's "festival of lights." It gets its name from the lamps and candles that people light. Diwali is a time to give thanks. Read about this important holiday as you learn addition and subtraction! This Spanish math book combines math and reading skills and uses real-life examples of problem solving to teach subject-area content. The dynamic images, detailed sidebars, practice problems, and math diagrams make learning arithmetic easy and fun. Text features include a table of contents, a glossary, an index, and captions to build vocabulary and increase...

Sueña 4 está destinado a alumnos con un alto nivel de español. Se pretende desarrollar en el estudiante la competencia comunicativa que le permita diferenciar usos lingüísticos y seleccionar en cada momento el más indicado, de acuerdo con factores tales como la intención del hablante, el contexto lingüístico y extralingüístico o las características de los interlocutores. Consta de 10 lecciones, divididas en secciones independientes que facilitan al estudiante el conocimiento de usos y reglas concretos. Estas secciones corresponden a la gramática (Normas y reglas), la escritura...

La obra 'Educación Física y Currículum. Introducción crítica' aparece dentro de la literatura hispana específica en un momento en que el estudio del currículum despierta un gran interés dentro del mundo de la educación fisica española. Sin embargo, debemos recordar que la preocupación por los temas del currículum en la educación fisica surge, desde sus inicios, en conexión con la génesis del currículum como campo de estudio alrededor de los años veinte del siglo XX.

When President Thomas Jefferson bought the Louisiana Territory from cash-strapped France in 1803, he doubled the size of the United States without really knowing what he was getting. He dispatched Meriwether Lewis and William Clark and their Corps of Discovery to explore a territory that would include part or all of fifteen future states and to seek a water route to the West Coast. Westward expansion began immediately, all for the bargain price of 15 million dollars. This book richly explores this fascinating part of history.