La vida de Sacagawea (The Life of Sacagawea)

When Paul Revere warned colonists the British army was coming, he helped prepare a nation for battle. This exciting book will take readers from Revere’s life as a silver- and goldsmith to his midnight ride at the start of the American Revolution. Through achievable content and language translated into Latin-American Spanish, English language learners will engage with important historical facts and ideas. A helpful timeline of events and colorful images will enhance the story of one of American history’s most famous folk heroes.

* ¿En qué punto nos encontraríamos si no existiesen la rueda o el vidrio? Imagine la vida sin el cemento o los ordenadores. * Piense durante un momento cómo mejoran nuestra salud y nuestro bienestar las vacunas y el marcapasos. * La sofisticación de la medicina contemporánea es una proeza excepcional que permite a muchas personas vivir con unos niveles de atención sin precedentes. * Pero el progreso médico tiene un precio que también forma parte del paisaje médico actual: resistencia a los antibióticos, bacterias multirresistentes que mutan constantemente y las consecuencias...

De todas las grandes aventuras que ha vivido el ser humano hasta nuestros días, la que le llevó a montarse en una nave espacial y alcanzar la Luna es seguramente la más apasionante y hermosa de todas. Súbete en el Apollo 11 y acompaña a Armstrong, Collins y Aldrin en una aventura espacial camino de la Luna, camino de la historia.

"Discover the amazing world of boa constrictors! Now in Spanish, this fresh new text is carefully leveled and accompanied by vibrant full-color photos. Critical thinking questions and a photo glossary make this a perfect introduction to nonfiction."

Many insects hatch from eggs and molt several times as they grow bigger. Others, such as butterflies, undergo a complete metamorphosis. A common science curriculum topic, insect life cycles may be confusing because of these differences. However, this book breaks down these cycles into easy-to-understand steps in both accessible language and colorful diagrams readers can turn to for review again and again. The most important vocabulary needed to talk about insect life cycles is further explained in fact boxes and an extended glossary.