Cómo podemos utilizar la palanca?

Young students will be enthralled with compelling portraits of famous figures who devoted their lives to improving the world. Includes historical photos and illustrations.

Define planos inclinados, explica sus funciones, y sugiere experimentos sencillos para demostrar cómo funcionan.

Follows the Thirteen the Amendment that freed the slaves, end of the war, and the death of President Abraham Lincoln.

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.

Even before Christmas celebrations began, evergreen trees were used as part of winter festivals and celebrations. Today, many people still bring a real fir tree into their home at Christmastime, or an artificial tree that may come in any color including green, silver, or pink. Written with age-appropriate language and content, this book explains the symbolism behind our use of Christmas trees today and the many famous trees readers may know, including the huge tree at Rockefeller Center in New York City.

"Una fresca y espléndida historia de amor que aborda las complejidades de nuestro corazón. Ramona Blue descubre que el amor sin límites es sinónimo de belleza total". —Adam Silvera, autor de Al final mueren los dos Con su inconfundible cabello azul y su más de uno ochenta de estatura, Ramona Blue está segura de unas cuantas cosas: le gustan las chicas, adora a su familia, la natación es su pasatiempo favorito y está destinada a algo mucho más grande que el remolque en el que vive. No obstante, las cosas no le resultan fáciles con una madre inestable, un padre amoroso pero...

In today's chaotic world, opportunities abound for youth to disengage from community and worship. Once this happens, young people often don't come back. The National Federation for Catholic Youth Ministry wrote From Age to Age in 1997 as part of multiple-year response, to increase youth participation in worship. The document sparked national dialogue on how Roman Catholic parishes might best reach out to and involve youth in Catholic worship. From Age to Age revisits the liturgical principles of Vatican Council II and applies them in creative ways. The document provides strategies to help...

This is a story about a little girl who has questions about the moon. Through a fictional story, she discovers the answers with scientific exploration and examples illustrated through the story.