Calentamiento global (Global Warming)

Introduce students to the structure of the United States government. With this nonfiction Spanish-translated resource, readers will learn about the three branches of government, and the purpose of this separation of powers. Primary source images and supporting text engage readers and help them better understand the content.

Teach students about trading and buying goods and services. In this Spanish-translated book, readers will learn about supply and demand, and learn the difference between wants and needs. Featuring images that support the informational text, students will build social studies content-area literacy and reading skills.

Did you know that an Apatosaurus was longer than four cars end to end? It weighed more than 70,000 pounds (31,751 kilograms). Learn more about this fascinating creature in Apatosaurus. The AV2 Spanish language collection gives emerging bilingual readers access to both a printed Spanish book and an eBook that provides both Spanish and English translations of the text.

Antes era válido acusar a quienes historiaban el pasado de consignar únicamente las «gestas de los reyes». Hoy día ya no lo es, pues cada vez se investiga más sobre lo que ellos callaron, expurgaron o simplemente ignoraron. «¿Quién construyó Tebas de las siete puertas?», pregunta el lector obrero de Brecht. Las fuentes nada nos dicen de aquellos albañiles anónimos, pero la pregunta conserva toda su carga (Carlo Ginzburg).

Sitting Bull first went to battle at the age of 14. He grew to be widely respected for his bravery and insight, and became chief of the Lakota nation in his thirties. By the time he met General Custer at the Battle of Little Big Horn, his courage was legendary. Though he soundly defeated Custer, public outrage at the defeat brought thousands of cavalrymen to the area, where it took four more years before the brave chief would surrender. He was forced onto a reservation where he was later killed when police attempted to arrest him.

La colección ESTRATEGIAS DE SUPERVIVENCIA recoge todas aquellas tretas, señuelos y actividades que desarrollan los animales y las plantas tanto para defenderse como para atacar, para sobrevivir en medios hostiles, para reproducirse con éxito entre los dep