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.

Provides an introduction to the concept of patterns, using examples from the coats and feathers of animals as well as the designs some make.

Compara tu tamaño con el de un rosado flamenco, observa coloridos insectos más pequeños que una uña, encuentra a los reyes del camuflaje y asómbrate ante el gran pico multicolor del tucán. Un libro con increíbles fotografías y enormes páginas para desplegar y ver a los animales ¡en tamaño natural! Un libro desplegable que provoca el asombro y despierta la curiosidad. Otros libros de la serie: Enanos y mastodontes

Suitable for training advanced level students in writing texts in different styles and registers in Spanish

Readers will learn all about the United States' westward expansion in this interesting nonfiction Spanish-translated book, which uses appealing images, helpful maps, and supportive text to keep children engaged from beginning to end!