El ferrocarril transcontinental (The Transcontinental Railroad)

People today refer to the Midwestern and prairie states as flyover country. During the Civil War, crossing those areas was the biggest obstacle in uniting the East and West Coasts of our divided nation. An act of Congress in 1862 authorized the Central Pacific and the Union Pacific railroad companies to build a railroad that would link the coasts. Seven years later, on May 10, 1869, an overwhelmingly immigrant labor force completed the task when a rail line was join in Promontory, Utah. The states had become united at last.

Novedosos libros que nos acercan al modo de vida de antiguas civilizaciones, con vasta informacion y laminas transparentes de acetato que al levantarlas descubren construcciones caracteristicas de cada cultura.

Simple text and photographs introduce USDA's MyPlate tool and present healthy fruit options for children.

Poeta exigente, de obra decantada, que con solo tres titulos se ha situado entre las voces imprescindibles de la literatura espanola, Antonio Cabrera ofrece en su poesia meditativa un reto intelectual y un refugio de expresion segura. Piedras al agua, su nuevo poemario, lo confirma como un autor primordial.

Con este texto los lectores aprenden todo sobre los chimpancés y su increíble hábitat de selva tropical. Las fotografías de color dan un vistazo a la vida de un chimpancé mientras que las preguntas de pensamiento crítico y un glosario de fotos ayudan a los lectores de no ficción por primera vez. With this carefully leveled text, now in Spanish, readers learn all about chimpanzees and their incredible rain forest habitat. Full-color photographs give a glimpse into the life of a chimp while critical thinking questions and a photo glossary assist first-time nonfiction readers.