Cómo ser adolescente y ser felíz en el intento

Historia es un volumen dedicado al mundo anterior al que hemos conocido, desde la época de los dinosaurios, hasta los primeros hombres primitivos, el antiguo Egipto, los grandes imperios de Grecia, Roma y China, la Edad Media, etc. Incluye ejercicios de atención y vocabulario específico.

The United States grew rapidly from the time of the Louisiana Purchase to the building of the Transcontinental Railroad. All of this expansion came at the expense of Native American populations that had either lived in the region for centuries or been forced there from ancestral homes in the East. Tribes memorably fought on their own and together in an doomed effort to retain the land and a lifestyle that had long sustained their families. This book outlines some of the major conflicts of the Westward Expansion, and of the treaties and were signed, and often broken, by representatives of the...

The Mi Mini Biografia series are Spanish language biographies for the earliest readers. This book examines the life of Davy Crockett in a simple, age-appropriate way that will help children develop word recognition and reading skills. Includes a timeline and other informative backmatter.

We use machines every day, but most of us don't understand how they work. When they break down, most of us have no idea how to fix them. Mechanics are the masters of machines. Readers learn that mechanics work on vehicles, including cars, boats, and buses. They use special tools to take them apart and fix what's wrong, and they use their experience and technology to diagnose problems. They often work long hours, sometimes in bad weather, to get us where we need to go. Your readers will see that mechanics keep our world moving and growing.