La vida de Sacagawea (The Life of Sacagawea)

¿Quién es Mónica y quiénes son los millares de jóvenes que están detrás de las rejas? Personas ignoradas por el amor de alguien, destruidas por los matratoos en la infancia y la adolescencia, o simplemente que erraron por no encontrarle sentido a su vida, y avanzaron por donde les pareció mejor para hallar lo que toda persona anhela: gozar de libertad y felicidad. Hay otros millones de seres humanos que, sin estar atrás del hierro de las rejas, son víctimas de otras cárceles que los aprisionan sin piedad. Son las cárceles del miedo, el odio, la pobreza extrema, la carencia de amor ...

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!

The scientific method lists important steps in the process of conducting scientific study and research. With detailed images and fascinating sidebars, this nonfiction book explores the scientific method and scientific practices in depth, and introduces students to new concepts, vocabulary terms, and STEM topics. Aligned to state and national standards, the leveled text supports students reading at above-, below-, and on-grade level. The fun lab activity encourages students to think like scientists. Keep students engaged in learning with this Spanish book.

Born and raised on a family farm, Henry Ford abandoned his traditional way of life to become an American legend and industry icon. Ford's life mirrored the broad transition taking place in the United States just after the Civil War as it converted from an agrarian to an industrial society during the American phase of the Industrial Revolution. Henry Ford was also a man of contradictions. While he gained fame for producing affordable cars such as the Model T, raising wages, and hiring minorities and immigrants, he also was accused of stubbornness, bigotry, and suppressing workers' rights. This ...