National Geographic Readers: Los Gatos vs. Los Perros (Cats vs. Dogs)

Take a tour of the world's most fascinating landmarks! The Gateway Arch, Big Ben, the Pyramids of Giza, and the Sydney Opera House are just a few of the landmarks that students will learn about in this high-interest book. This nonfiction math book combines math and literacy skills, and uses real-life examples of problem solving to teach subject area content. The full-color images, engaging sidebars, practice problems, and math diagrams make learning arithmetic concepts relevant and fun. Text features include a table of contents, glossary, and index to increase understanding of math and...

An innovative tool supports high school students and teachers in the area of language and communication. PP.

Severn Cullis-Suzuki was only twelve years old when he addressed the entire world: What are we doing to Earth, our home? How far can human greed go? Little Severn embarrassed the world leaders and asked them to be consistent, that their actions would reflect their words. An emotional speech, full of truths as simple as they are revealing, and even more relevant today than when it was delivered. This is a bilingual edition.

Todo el mundo sabe que una de las pasiones de Emily the Strange es construir máquinas y artefactos de los más variado. En esta ocasión ha inventado una máquina para trasladarse en el tiempo y en el espacio. Piensa en darse un paseo por el Nueva York punk de los años 70 o ver los dinosaurios, pero un problema familiar la obligará a viajar a una época bien distinta. Así, Emily llega hasta finales del siglo XVIII. Y el problema no es que se tope con un mundo que no es el suyo, sino que se quedará atrapada en él...