Nuestro medio ambiente en constante cambio (Our Ever-Changing Environment)

Teach students about trading and buying goods and services. In this Spanish-translated book, readers will learn about supply and demand, and learn the difference between wants and needs. Featuring images that support the informational text, students will build social studies content-area literacy and reading skills.

Introduce students to the structure of the United States government. With this nonfiction Spanish-translated resource, readers will learn about the three branches of government, and the purpose of this separation of powers. Primary source images and supporting text engage readers and help them better understand the content.

Introduce students to the structure of the United States government. With this nonfiction Spanish-translated resource, readers will learn about the three branches of government, and the purpose of this separation of powers. Primary source images and supporting text engage readers and help them better understand the content.

Learn how engineers are racing to save the city of Venice from sinking and flooding. This Spanish STEAM reader features a hands-on STEAM challenge and uses real-world examples to teach problem solving.

Si te cuelas entre las páginas de este libro corres el peligro de volar a lomos de un dragón, servir de conejillo de indias en una escuela de magia.... Y en cuanto te descuides sufrirás el ataque a traición de sumas y restas (¡de hasta tres cifras!)

Los vikingos fueron unos marineros audaces y experimentados que mantuvieron en vilo todas las costas de Europa a lo largo de dos siglos, con sus incursiones en busca de tierras y de riquezas. También fueron buenos comerciantes y el primer pueblo europeo que inauguró la senda de los grandes descubrimientos geográficos. La parte más importante de su legado se conserva en los países escandinavos. Más allá de sus regiones de origen, la principal enseñanza que legaron los vikingos fue su capacidad de lograr grandes gestas con escasos medios materiales, a base sobre todo de arrojo y de...

Two books in one, this oversized volume shows readers the plants, root systems, insects, fossils, animals, mines, gems, minerals, and man-made wonders such as tunnels, subways, submarines, pipes, cables, and power lines that can be found underground or underwater in an unforgettable visual way. Each page takes you deeper and deeper under the waves or through layers of earth.