Héroes y antihéroes en la literatura

Una historia sobre guerreros del pasado a los pies de una montaña. La segunda muestra a unos alpinistas del presente tratando de coronarla y, en la cima, alguien misterioso... La pieza que une ambas historias, las páginas centrales de esta obra, las escribirá el lector; solo él tiene la clave. Una estupenda manera de incentivar la creatividad y la imaginación.

Black holes are neither holes nor black. They're invisible and packed with matter! Future astronomers will find out many more fascinating facts about these space phenomena with this intriguing book. Carefully crafted text encapsulates the most important information about black holes, such as how scientists locate them and their significance in a star's life cycle. Amazing photographs support critical concepts and inspire a true appreciation of the spectacles of space.

Learn how the power of a petition can give Americans the ability to create real change! This Spanish nonfiction book includes a related short fiction piece, glossary, an exciting bonus activity, and other useful tools. The fun images and meaningful text will teach students how to be responsible citizens who can improve their communities by writing petitions. This 32-page full-color Spanish book describes the purpose of petitions and how they can be used to make a difference. It also explores important topics such as laws and democracy and includes an extension activity for grade 3. Perfect...

Describes the importance of farms and the changes that have taken place on farms in the United States from the eighteenth century to the twentieth century.