Dinosaurios, garras y crestas

Beginning readers will be captivated by the creatures they meet in this Spanish translation of Prehistoric Creatures. The simple text describes ancient animals that swam the seas, soared through the skies, and roamed the Earth long before people existed. Each book describes a group of dinosaurs that shared one or two fascinating features. Dazzling illustrations help bring these amazing creatures to life!

Explains the idea of taking turns and emphasizes how important taking turns is to being fair and being a good friend.

En 1792, una sanguinaria bestia hace estragos en la Hoya de Castalla, donde cunden rumores sobre una extraña epidemia. El botánico A.J. Cavanilles recorre la región en busca de un antídoto contra la hidrofobia mientras elabora un catálogo de plantas por encargo de Carlos IV. Para poder adentrarse por zonas escarpadas llenas de peligrosos precipicios toma como guía a un avispado muchacho del lugar, el pícaro Ángel Taras, que servirá como contrapunto del ilustrado. Iniciada la expedición, pronto serán testigos de siniestros acontecimientos: un cadáver incorrupto al ser desenterrado...

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 Spanish book provides firsthand accounts of history that give personal insights into historical events. This primary source book focuses on the lives of Native Americans as pioneers began moving west during the 1800s. Students will explore significant historical events such as the Indian Removal Act, the Trail of Tears, the Seminole Wars, Red Cloud's War, the Battle of the Little Bighorn, the Nez Perce? War, Wounded Knee, and more. With a visually appealing layout, this ESL book features captivating text, fun facts, sidebars, and time lines that help students grasp the essential concepts ...

Con la idea de que pensar y discutir sobre problemas matemáticos podría generar el mismo entusiasmo que practicar un deporte en equipo, en la antigua Unión Soviética surgió el singular movimiento cultural de los CÍRCULOS MATEMÁTICOS, que dejó tras de sí un intenso rastro de problemas, enfoques y textos. CÍRCULOS MATEMÁTICOS recoge parte de aquella emocionante experiencia.Es un libro de divulgación matemática dirigido a todos aquellos que sienta curiosidad por el juego mental que implican las matemáticas y que deseen indagar en sus ramas menos conocidas. También es un libro...