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.

The need for speed is the motivating factor in this engaging, Spanish book. Readers learn the history of travel from the very slow to the supersonic and beyond, including everything in between. They learn and discover the factors that influence motion for all types of vehicles: land, air, and water alike. They also learn different ways to measure speed and read about energy uses for different vehicles. With greater speed comes greater risk. Readers learn how engineers are always seeking new and better ways to keep people safe as they travel faster and go farther.

El reciclaje, el calentamiento global del planeta y el cuidado de nuestro entorno son cuestiones de actualidad que también interesan a los niños y niñas. Este título las pone a su alcance para que puedan conocerlas y poner su granito de arena para lograr un mundo más verde. Incluye un póster y unas instrucciones para decorar una maceta y plantar una semilla.

An ideal book for young Spanish students; proposes a new progression that promotes language acquisition and consolidation of contents, offers numerous grammatical and lexical and formal practice aid activities within the unit and contains a competency evaluation at the end of each chapter.

Una guía para comprender mejor el misterio de la Eucaristía, que es el misterio del amor de Jesús por nosotros, hasta quedarse bajo la apariencia de pan. El misterio de la Eucaristía es algo muy grande y maravilloso que es necesario comprender bien. Con este libro podrás entender mejor y maravillarte del gran amor de Jesús, que quiso quedarse con nosotros bajo la apariencia de pan. También podrás leer algunos milagros eucarísticos que nos ayudan a creer en este hecho tan especial.