El ciclo del nitrógeno (The Nitrogen Cycle)

How do you truly engage students in learning history? When students make personal connections to the subject, they’re much more motivated to learn. This Spanish book provides firsthand accounts of history that give personal insights into historical events. Students will learn what life was like for people living in the Southern Colonies. With a visually appealing layout, this book features captivating text, fun facts, sidebars, and time lines that help students grasp the essential concepts they need to know at their grade level. Packed with information and primary source maps, images, and...

Do you know what the Liberty Bell is? Go back in history to understand why Americans fought for freedom from Britain, why the Liberty Bell was important to that time, and more in The Liberty Bell.

Bernardino de Sahagún recopiló un inmenso caudal de datos que conforman la edición de su Historia general de las cosas de la Nueva España. En estas páginas, extraídas de aquella monumental obra, se muestran las supersticiones y convicciones, los días y sus significados entre los antiguos mexicanos.

In this book, you'll find dramatic photographs of big cats from all over the world. See snow leopards on icy mountains, lions on African grasslands and jaguars in the Amazon rainforest. You can also read vivid descriptions of how big cats move, hunt and find a mate.