Cómo podemos utilizar el tornillo?

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.

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.

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

Introduces young readers to the tyrannosaurus rex, examining its physical characteristics, eating habits, and extinction.

"Deca̕ un poeta espaǫl que, en Nueva York, las estrellas le pareca̕n anuncios luminosos. A m,̕ en cambio, los anuncios luminosos me parecen estrellas, y Nueva York, es, en mi concepto, una ciudad romǹtica, no a pesar de su brutalidad y de su codicia, sino por elas precisamente. Por su brutalidad y su codicia, por su estridencia, por su violencia, por su culto de las cats̀trofes, por su sacrificio constante del pasado y del porvenir al momento presente, por la organizacin̤ comercial de sus crm̕enes y la organizacin̤ criminal de sus negocios, por su clima contradictorio, desmesurado e...

Blobfish, pangolin, and flower mantis are just a few of the names of the bizarre bugs and animals that readers will learn about in this fascinating, Spanish-translated nonfiction title. Through vibrant images and photos, informational text, a glossary of terms, and an index, readers will learn some of the strange ways that arthropods, invertebrates, and mammals have adapted over time to camouflage themselves and develop interesting ways to keep predators away.

The use of calendars dates back thousands of years. Why are we driven to record time, and what would happen if we did not? Who created the concept of calendars? Why do different cultures use different calendar systems? And why are calendars so important to us? It is about "time" we found out! Created in collaboration with the Smithsonian Institution, this Spanish-translated Smithsonian Informational Text builds reading skills while engaging students' curiosity about STEAM topics through real-world examples. Packed with factoids and informative sidebars, it features a hands-on STEAM challenge...