La resolución de problemas

California became a territory in the United States when the Treaty of Guadalupe Hidalgo was signed in 1848. That treaty ended the Mexican War. Several days before its signing, gold was discovered at Sutter’s Mill in what is now Sacramento. The non-Native population of the territory was less than one thousand in 1848, but the gold rush increased that number to one hundred thousand by the end of 1849. The gold rush not only made many people wealthy, it brought ecologic devastation while speeding up California’s statehood. This book richly explores this interesting history.

¡Hey, sexy lector! Si aún no te animas a convertirte en un viajero vagabundo, no te preocupes: ese miedo es sólo el espíritu del aventurero que vive en ti. Y tu tía Ixpanea te ayudará a transformarlo en deseo. Sólo hay un requisito: las ganas de vivir, ¡y no existe mejor forma de vivir que viajando! Empecemos: en este libro aprenderás a viajar con muy poco dinero, a hacer correctamente una maleta ligera, a reaccionar en momentos de peligro; además, encontrarás una lista de las aplicaciones más útiles a la hora de viajar y toda la información que necesitas para que personalices...

The first Thanksgiving was a celebration. The pilgrims were thankful for the harvest they planted. Find out what the pilgrims ate for the first Thanksgiving. Paired to the fiction title A Year of Fun.

Durante décadas, los toques y chirridos de la guitarra eléctrica han sido algunos de los sonidos que definen la música popular. Pero tuvo que pasar más de un siglo de esfuerzo e innovación antes de que este instrumento fuera eléctrico. For decades, the blasts and howls of the electric guitar have been some of the defining sounds of popular music. But more than a century of effort and innovation had to happen before this instrument went electric. Learn about the master craftspeople who created the guitar as we know it, the inventors who figured out how to send guitar notes through...