Valores sociales

Examines the nature of human rights, including the gradual development of the idea that all people, regardless of gender, color, or wealth, are citizens with rights, not just subjects with duties, and discusses the growth of social rights and the case against torture.

Introduce students to one of the greatest presidents in American history, Abraham Lincoln. In this engaging and informational Spanish-translated biography, readers will learn about the amazing things that Lincoln accomplished during his presidency, and why he is considered a hero today. Build reading skills and strengthen social studies knowledge with this engaging book!

The nineteenth century was a time of huge growth and prosperity for California. Although the Gold Rush lasted only seven years, California provided other opportunities for those who emigrated there in search of a better life. This Interactiv-eBook focuses on the history of San Francisco, Los Angeles, Sacramento, and Fresno, and the people and events that influenced their transformations from small towns to booming cities. This nonfiction text builds literacy and social studies content knowledge through the use of intriguing primary source documents like maps, letters, images, articles, and...

¡Ñee! ¡Hola, gente! ¡Soy Pacheco Cara Floja! Y en este nuevo libro quiero contaros cómo salvé la Tierra de una gran amenaza intergaláctica... Todo empezó cuando maté a aquel mosquito molesto de un golpe de remo. Bueno, el caso es que no era un mosquito, era un ser de otro planeta... ¡Qué demonios! ¿Cómo iba yo a saber que por haber acabado con ese bicho fastidioso una panda de alienígenas se iban a enfadar tanto? La única forma de salvar al planeta Tierra de la destrucción es viajar a Proteus y donar una muestra de mi ADN. Pero... ¿qué es lo que oculta Kran, el temible...

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.