Cómo podemos utilizar la polea?

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

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.

The Uses Of Wind Energy Is The Topic Of This Book. Explains The Positive And Negative Impact This Form Of Energy Can Have On Our World.

Introduces students to the alphabet and letter sounds and helps improve their Spanish-language skills.

This bestselling title in the highly acclaimed SeeMore Readers series is now available in Spanish. The same fascinating content as SUPER STORMS.

Introduce students to American civic values, and the importance of upholding these beliefs. This nonfiction Spanish-translated book encourages readers to embrace equality and responsibility. Primary source images support the text and engage readers to help them better understand the content.

Descubre las maravillas de este fabuloso país con Atlas del Perú , el primer y único atlas ilustrado para niños con reseñas de lo mejor y más representativo de cada región. En sus páginas, encontrarás mapas regionales con hermosas y divertidas ilustraciones para que los más pequeños del hogar conozcan las particularidades culturales, económicas, geográficas e históricas de cada rincón de este riquísimo país. Atlas del Perú es una introducción a la geografía del Perú cuyo propósito central es motivar a los niños a conocer más acerca de las diversas regiones del país.