Catástrofes que marcaron la historia (Unforgettable Catastrophes)

In this inspiring biography, readers will learn about the incredible journey of Helen Keller. Using informational, Spanish-translated text and expressive images and photos, readers will discover the undeniable determination that Keller had as a young deaf and blind girl and how her teacher, Anne Sullivan, helped her to read, write, speak, and graduate from college. With a timeline, a bibliography, and a glossary of terms, children are given the tools they need to expand their knowledge about this fascinating and inspiring woman. This 6-Pack includes six copies of this title and a lesson plan.

Anne Frank's diary has become one of the most widely read books in the world. Readers will learn about Anne as she went into hiding from the Nazi Party in this Spanish-translated nonfiction title. Through vibrant images, informational text, timelines, and a glossary of terms, readers will discover the hardships Anne and her family went through in order to avoid being sent to a concentration camp. This inspiring biography enables children to look up to Anne and find hope in every situation, just as she did.

Descubre cuántas ideas que siempre has considerado verdaderas no son más que falsas creencias, inexactitudes o leyendas urbanas.

El carácter de Kolmogórov se forjó en una época de revoluciones sociales y guerras mundiales. Vivió el estalinismo, la posterior rectificación de errores y el inmovilismo que luego daría paso a la perestroika. Aunque siempre se consideró a sí mismo un matemático puro, una parte esencial de su obra fueron sus investigaciones aplicadas a otras ciencias. Sus esfuerzos estaban regidos por una idea clara - discernir las diferencias y similitudes entre orden y caos. Mucho más que cualquier otro matemático, amplió los dominios y la comprensión humana del azar. Reinó en una escuela...

Imagine traveling at half the speed of a jet plane without ever leaving the ground! Students will discover the technology that makes such speeds possible, from special tracks and safety precautions to aerodynamically designed trains. What are the limits to the speed of trains? What imposes those limits? Students also will read about the future of passenger train travel, from flying trains to trains that use huge magnets to levitate inches or centimeters off the track. Some trains safely reach speeds of more than 200 mph!

Una historia sobre guerreros del pasado a los pies de una montaña. La segunda muestra a unos alpinistas del presente tratando de coronarla y, en la cima, alguien misterioso... La pieza que une ambas historias, las páginas centrales de esta obra, las escribirá el lector; solo él tiene la clave. Una estupenda manera de incentivar la creatividad y la imaginación.