Una Caminata en el Mundo de la Matemática

Carol ha cumplido 18 años. ¡Felicidades Carol, ya eres mayor de edad! Carol se fija en un cartel en el que un partido político pide el voto a los ciudadanos. De pronto, cae en la cuenta de que ella ya puede votar ¡pero no sabe muy bien qué debe hacer! Si crees que la decisión de votar o no votar, requiere preparación previa, ¡este es tu libro! En él encontrarás información objetiva, sencilla y didáctica, que puede ayudarte a resolver buena parte de tus dudas. Carol es consciente del esfuerzo que le va a suponer tomar su decisión, pero tiene claro que antes se informará,...

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.

This book introduces the reader to the nighttime world of the rat, including its habitat, activities, diet, and the unique things that it does.

Read Along or Enhanced eBook: Learn about the different places that people call home--from apartments to cottages and castles to farmhouses. With bright, vivid photos and easy-to-read informational text, this Spanish-translated nonfiction title introduces readers to different cultures' definitions of "home."