Cómo podemos utilizar la polea?

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

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.

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.

Atrévete a descubrir es el nuevo proyecto de Ediciones SM para segundo ciclo de Educación Primaria. El proyecto tiene como objetivo que los alumnos y alumnas adquieran aprendizajes básicos para la vida. Es decir, que sean capaces de aplicar lo que aprendieron a situaciones nuevas en su vida cotidiana, que no coincidan exactamente con las propuestas y contextos que estudiaron.

Featuring TIME For Kids content, this Spanish resource, Empujar y jalar (Pushes and Pulls), aligns with NGSS standards to teach young learners about forces and interactions. The engaging photos encourage students to describe what is happening using their own words. This full-color, wordless picture book can be used in the classroom or at home to teach children the difference between pushing and pulling.

California became a territory in the United States when the Treaty of Guadalupe Hidalgo was signed in 1848. That treaty ended the Mexican War. Several days before its signing, gold was discovered at Sutter’s Mill in what is now Sacramento. The non-Native population of the territory was less than one thousand in 1848, but the gold rush increased that number to one hundred thousand by the end of 1849. The gold rush not only made many people wealthy, it brought ecologic devastation while speeding up California’s statehood. This book richly explores this interesting history.

Libro bilingüe en español e inglés El grupo barcelonés The Pinker Tones presenta el libro Rolf&Flor, un libro bilingüe (español e inglés) para niños de entre 3 y 103 años, con ilustraciones de Miguel Gallardo y la participación de Albert Pla, David Brown (Brazzaville) y Mimi Miller. Rolf, un niño de Barcelona, y Flor, una niña de Nueva York, tienen vidas paralelas sin saberlo. Cuando se conocen descubren que son almas gemelas. Rolf, a boy from Barcelona, and Flor, a girl from New York City, are living parallel lives without knowing it. When they meet up they discovery are soul...