Libros de David Armentrout (6 libros)
Louis Pasteur

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

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.
La carta de derechos

Explains The Early History Of How The Bill Of Rights Came To Be And How It Is Used To Protect Citizens.
La Energía Solar (Solar Energy)

Solar Energy Is Explained. Included In This Book Is Where It Comes From, Who Uses It, And The Positive And Negative Benefits Of Using It. Correlated To Common Core, Texas TEKS, Virginia Sols, And Georgia Performance Standards.
Abraham Lincoln

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

Defines pulleys, explains their functions, and suggests simple experiments to demonstrate how they work.