Conservación de la masa (Conservation of Mass)

Light can travel faster than anything else in the universe. But what exactly is light, and where does it come from? This nonfiction Spanish book teaches students all about light, and introduces them to important scientific concepts and vocabulary terms like infrared, ultraviolet, photos, and visible spectrum. The intriguing images, detailed diagrams, and stimulating sidebars will keep students connected to the text. The fun lab activity provides a real-world learning experience that supports STEM instruction. Aligned to state and national standards, the leveled text supports differentiation....

Una nueva y cuidada edición del clásico, ilustrada por María Hesse. Clásicos inolvidables para disfrutar, compartir y dejar volar la imaginación. Una habitación propia es una obra icónica de la historia del feminismo. En él, Virginia Woolf trata temas como la dependencia económica, la carga de los cuidados y la poca presencia histórica de la mujer. Temas que, incluso hoy, generan fuertes debates. Esta nueva y cuidada edición del clásico, ilustrada por María Hesse, es una lectura clave y un ensayo de referencia en el feminismo.

This Spanish-language series, great for English language learners, uses simple text and colorful photographs and illustrations to introduce students to key math readiness skills. Each book focuses on key areas of the kindergarten math curriculum - number recognition, lengths, greater than and less than, and adding and subtracting.

Cartes de l'escriptor a la seva filla amb síndrome de Down. Un text excepcional sobre la condició humana i el respecte a la diferència.

As they say, necessity is the mother of invention, and this book introduces readers to 14 women who invented very useful, helpful items. They include Chicago native Margaret Wilcox who invented the car heater, Indiana native Marion O'Brien Donovan who invented disposable diapers, Pennsylvania native Stephanie Kwolek who invented Kevlar, and Austria-born actress Hedy Lamar whose secret communications systems led to the creation of WiFi, Bluetooth, and GPS.