10 grandes rutas del mundo

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...

Explores The Number Twelve With Relationship To Time, Counting, And Things That Are Sold By The Dozen.

Colección infantil de la psicóloga Andrea Cardemil sobre el control de emociones en niños y niñas. Como todos los niños y niñas, Filipo a veces se enoja. A veces puede ser un enojo chiquito que se le pasa rápido, y en otras uno tan grande que demora en calmarse. Descubre cómo mamá y papá oso lo ayudan.

It was known as the age of the dinosaurs, but other fascinating creatures roamed the Earth at the same time. Learn about lesser-known animals from the prehistoric era that are no less fascinating! Students will be engaged in reading about ancient animals like Gigantopithecus, Titanoboa, Megalodon, and more as they develop their skills at reading and writing numbers. This Spanish math book combines math and literacy skills, and uses real-life examples of problem solving to teach subject area content. The full-color images, intriguing sidebars, practice problems, and math diagrams make learning ...