Frederick Douglass: Líder del movimiento abolicionista (Frederick Douglass)

The need for speed is the motivating factor in this engaging, Spanish book. Readers learn the history of travel from the very slow to the supersonic and beyond, including everything in between. They learn and discover the factors that influence motion for all types of vehicles: land, air, and water alike. They also learn different ways to measure speed and read about energy uses for different vehicles. With greater speed comes greater risk. Readers learn how engineers are always seeking new and better ways to keep people safe as they travel faster and go farther. This 6-Pack includes six...

Christopher Columbus most likely wasn’t the person to discover the Americas. He wasn’t even the first European to do so! Despite that, his three trips to the Western Hemisphere led to many more European explorers heading in that direction. In this volume, readers familiar with Columbus’s travels on the Nina, Pinta, and Santa Maria can learn who Columbus was beyond his travels. Supported by full-color and historic images, interesting main content turns what readers think they know about the life of Columbus on its head while expounding on an important period in the history of the world.

Travel from the Egyptian pyramids, to the canals of Venice, to a space station, all within a single book! Each colorful page is filled with logic and observation games for curious minds. An answer key is included at the end of the book.

Esta es la extraordinaria historia de Michaela DePrince, una niña que consiguió escapar de la crueldad de la guerra y ascender al estrellato en el mundo del ballet. Michaela nace como Mabinty Bangura en Sierra Leona en plena guerra civil. Huérfana y despreciada por las cuidadoras de su orfanato, Mabinty tiene la esperanza de ser adoptada por una familia americana, pero teme que nadie la quiera a causa de las manchas de su piel. El día que cumple cuatro años, Mabinty encuentra una fotografía de una bailarina de ballet, que guarda como un tesoro. En ese momento decide que lo que más...