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Gives a brief history of the Porsche automobile and describes its special features and classic models.

Motmota es una marmota entrañable, ingeniosa y tierna... Es muy fácil divertirse con sus geniales despistes. En este título de la serie SIENTE, Motmota te demostrará que, sin duda, tiene la cabeza en las nubes, ¡pero el corazón junto al de sus amigos!

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.

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.