Como "Gira" El Mundo

Sesenta autores, desde catedráticos de universidad hasta estudiantes de Secundaria y Bachillerato, nos presentan los cuarenta desafíos que la Real Sociedad Matemática Española propuso con motivo de su centenario.Son cuarenta estimulantes retos que avivan el ingenio. Enfrentándose a ellos, el lector se sentirá un auténtico investigador matemático.Pero no hay que asustarse. No es necesario saber muchas matemáticas. La herramienta esencial para resolver los desafíos es pensar ordenadamente.

Habitat for Humanity has built more than 100,000 houses around the world. Volunteers of all ages help Habitat for Humanity. Young readers will be inspired by the work Habitat does. They may even volunteer to help!

Our teens hold the future in their hands. Battle Cry for a Generation tells us why and how to reclaim our youth for Christ. Spanish version of Ron Luce's bestseller.

What do you do if you find yourself stranded at sea? This useful, Spanish-translated nonfiction book gives readers the information they need in order to survive at sea. With essential tips and instructions, helpful diagrams and images, a bibliography, and a list of other useful websites, readers will learn everything they need in order to survive--from the dangers of hypothermia, what to do if there's only saltwater available, and other useful survival skills. This 6-Pack includes six copies of this title and a lesson plan.