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.

¡La Tierra es bastante increíble! Es el único planeta en nuestro sistema solar en el que los humanos podemos vivir. Desarrolle habilidades de no ficción y aprenda todo sobre nuestro planeta de origen con el vibrante glosario fotográfico de este libro y el texto en español apropiado para su edad. Earth is pretty incredible! It's the only planet in our solar system humans can live on. Build nonfiction skills and learn all about our home planet with this book's vibrant photo glossary and age-appropriate Spanish text.

Practice standard measurement at a farmers market! This engaging title teaches young readers how to measure common food items by their height, circumference, and more, improving their mathematical and STEM skills! Vibrant images, practical examples, and simple mathematical charts help children use standard measurements, showing them how they can use these measurements in their daily lives.

En 2007, una editora recibe un paquete remitido por alguien que se hace llamar Comte de Ville, y que desea permanecer anónimo. Se trata de un dossier encontrado entre las pertenencias de Bram Stoker, que han sido subastadas y han circulado de mano en mano. El dossier consta de una serie de cartas, documentos y recortes periodísticos, y del diario personal que Stoker escribió durante el año 1888. El lector irá descubriendo poco a poco que el dossier puede ser la respuesta a las preguntas aun abiertas sobre la siniestra figura de «Jack el Destripador», y que la clave del asunto la tenía ...

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...