El ciclo del nitrógeno (The Nitrogen Cycle)

Take a bat, a ball, a mitt, and a warm summer day. Put them all together and you've got the great game of baseball! From the basic rules of baseball to All-Star Games, the first World Series, and the Hall of Fame, readers learn all about America's national pastime in this Spanish-translated nonfiction title that features plenty of colorful images, timelines, charts, and informational text. This 6-Pack includes six copies of this title and a lesson plan.

We have summarized the essential of the following texts: From POLITICAL ESSAYS, "The crisis of the Welfare State and the depletion of the utopian energies", from THEORY AND PRAXIS, "The classsical doctrine of politics and its relationships with philosophy", a small fragment of "Science and technique as ideology and the article "Modernity, an uncomplete project".

Follows the life and career of the French scientist who proved the existence of germs and their connection with diseases.

¡Otra vez se ha perdido Gocú! El gatito se subió a un globo aerostático que lo lleva de paseo por las vocales. Cada vocal ofrece divertidísimas actividades para los recién iniciados en el proceso de alfabetización (a partir de los 4 años).