La Verdadera Ciencia de la Invisibilidad

Animalanzas incluye casi doscientos acertijos de Hispanoamérica, ideales para leer y reir en los ratos libres.

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.

Discusses the life and work of French soldier and political thinker, Marquis de Lafayette, and his role in the American Revolution.

The man who saved the lives of his PT-109 crewmen during WWII and became the 35th president fought-and won-his first battle at the age of two-and-a-half, when he was stricken with scarlet fever. Although his presidency was cut short, our nation¿s youngest elected leader left an indelible mark on the American consciousness and now is profiled in our Who Was¿? series. Included are 100 black-and-white illustrations as well as a timeline that guides readers through this eventful period in history.