26 Problemas resueltos de navegación astronómica para capitanes de yate

El 2 de mayo de 1808 el pueblo de Madrid se levantó contra el ejército de Napoleón. Mientras los madrileños se enfrentaban a los franceses, Goya se dirigía a la escuela de sordomudos para enseñar pintura a los niños. Debido a su sordera no podía escuchar el ruido de los enfrentamientos en las calles de la ciudad. Gracias a la ayuda de Ana, una criada a la que quería retratar, Goya logró ponerse a salvo. Las imágenes de aquella guerra permanecieron en su memoria y años después motivaron sus cuadros. Fernando Marías conmemora el bicentenario de la Guerra de la Independencia con un ...

No town or city could be built if the builders didn't understand the concepts of perimeter and area. Students will use perimeter and area to build towns and cities and design homes and parks in the book, Pueblos y ciudades (Towns and Cities). At home or in the classroom, this nonfiction book will engage students in learning measurement and geometry, and how to grid patterns, through fun practice problems and diagrams.

When President Thomas Jefferson bought the Louisiana Territory from cash-strapped France in 1803, he doubled the size of the United States without really knowing what he was getting. He dispatched Meriwether Lewis and William Clark and their Corps of Discovery to explore a territory that would include part or all of fifteen future states and to seek a water route to the West Coast. Westward expansion began immediately, all for the bargain price of 15 million dollars. This book richly explores this fascinating part of history.

An introduction to what cowboys do, what their day is like, what they wear, what tools they use, and how people can become a cowboy.