How Do You Measure Time?

Provides an overview of the design, uses, weapons, and equipment of U.S. Navy submarines. Written in English and Spanish.

Introduces the former Duke University basketball star, Grant Hill, who now plays for the Detroit Pistons.

En esta obra de teatro, Quique y Teresa, los dos hermanos protagonistas de la historia, comparten aventuras con dos personajes de juegos de ordenador, gracias a un invento del padre, un chip que está desarrollando para hacer que la sensación de realidad virtual de los juegos sea casi real.

Learn about some animals that are in danger of becoming extinct and what people are doing to Save the Animals.

This inspiring biographical series ties in with elementary history, science, and social studies curricula, providing teachers with a valuable interdisciplinary resource. With these books, young readers will discover historical figures who devoted their lives to making the world a better place, and changed the course of history. Text copyright 2004 Lectorum Publications, Inc.