Enciclopedia de Los Dinosaurios y Otros Animales Prehistoricos

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.

In graphic novel format, follows the adventures of Max Axiom as he explains the importance of science safety.

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.

In this exciting, Spanish-translated nonfiction book, readers learn about the Wright Brothers, the history of aviation, how air travel has changed the way people work and live, and the important parts that make the plane fly! Using informational text, vibrant photos, an interesting timeline, and intriguing facts, this book will have readers wanting to learn everything they can about airplanes!