Creamos una aplicación: Carreras en computación (We Make an App: Careers in Computers)

Ésta es la historia de dos príncipes hermanos unidos por su lucha común contra el usurpador que provocó la muerte de su padre y robó su trono. Ambos irán distanciándose en una rivalidad por la pasión que despierta en ellos la misma fascinante mujer, y porque las propias gestas que les reportan poder y gloria también les hacen saborear el sutil veneno del orgullo, la ambición y la envidia... pues sólo uno puede ceñir la corona. Leeréis una epopeya fantástica pero pseudohistórica, en un mundo imaginario lleno de aventuras.

Simple text and color photographs show what life is like on a ranch, covering cattle, corrals, roundups, and other topics.

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...

This Spanish-language series presents the complete range of math concepts and skills students are expected to master during the first grade. The series moves sequentially, from easiest to hardest concepts, with each book covering a different math topic. The first volume reviews the math concepts students learned in kindergarten. The next six books cover counting, adding and subtracting, tables and graphs, money, patterns, and measuring. The eighth volume is a summary of the math concepts students have studied throughout the year. Each book presents situations that show the relevance of math...