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.

Learn about the Victorian era while building your knowledge of equivalent fractions! Students will learn fractions while engaged in reading about the innovations of the Victorian era. This Spanish book combines mathematics and literacy skills, and uses practical, real-world examples of problem solving to teach math and language arts content. The glossary, index, and table of contents will further understanding of reading and math concepts, and the full-color images, practice problems, and math graphs and charts make learning math easy, practical, and fun. The Explore Math sidebars and Math...

Hace mucho, mucho tiempo, existieron en el mundo 7 construcciones arquitectónicas que desafiaron los conocimientos y medios de que disponían los hombres de aquella época. p.p1 {margin: 0.0px 0.0px 6.0px 0.0px; text-align: justify; font: 16.0px Arial; color: #000000; -webkit-text-stroke: #000000} span.s1 {font-kerning: none} En el mundo antiguo, estas maravillosas construcciones fueron relatadas, en especial, por los antiguos griegos, sobreviviendo su historia y sus leyendas hasta nuestros días. Os presentamos esas 7 maravillas en este libro de forma muy gráfica y esquemática. Con...

The overall concept of money usually comes easily to young learners who curiously watch the exchange of money for goods from an early age. However, noticing the distinguishing characteristics of different kinds of money, such as coins and paper notes, is a bit trickier. This helpful and engaging book is an excellent companion for those who are learning to discern the different types of money. It also touches on the valuable skills of sorting and classifying, which are important concepts in early elementary math curricula.

Esta antologâia para jâovenes y niänos contiene 64 poemas de 19 paâises, mezclando el trabajo de los poetas indâigenas de antes de la Conquista con lo de escritores actuales. Los textos reunidos van de la contemplaciâon de la naturaleza a los disparates,de la polâitica a la magia.