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.

¡Los doctores saben muchas cosas sobre la salud y el cuerpo humano! Al examinar a los pacientes y recetar medicamentos, los médicos pueden averiguar qué está enfermando a una persona y cómo hacer que se sienta mejor. Ahora en español, este título involucra a los lectores jóvenes para aprender cómo los médicos sirven a su comunidad. Las preguntas de pensamiento crítico apropiadas para la edad y un glosario de fotos ayudan a desarrollar habilidades de aprendizaje de no ficción. Doctors know many things about health and the human body! By examining patients and prescribing medicine,...

Esta nueva colección de libros surge con el propósito de ayudar a los primeros lectores a comprender, amar y cuidar el mundo en que vivimos y que compartimos con nuestros semejantes. Se trata de obras profusamente ilustradas, con bellas y expresivas imágenes a todo color y textos directos, claros y concisos que ponen al alcance de todos los niños y niñas los conocimientos más básicos de la forma más divertida. El tercer volumen, El cielo, pone al alcance de los más jóvenes los secretos del universo, que desde siempre el hombre ha intentado descubrir, a simple vista o con aparatos...

In the third book in Andrea Camilleri's Montalbano series, the urbane and perceptive detective exposes a nest of corruption and international intrigue in a compelling new case. When an elderly man is stabbed to death in an elevator and a crewman on an Italian fishing boat is shot by a Tunisian patrol boat, only Montalbano suspects the link between the two incidents.

Take a trip to the world market for an exciting way to learn about standard measurement! This title takes young readers to markets around the world, showing them how to measure common food items with standard measurements. Some things are measured by length! Some things are measured by weight! Children will learn these and other measurement techniques through vibrant images, fun examples, and simple mathematical charts, enhancing their mathematical and STEM skills.