Cómo funcionan los juguetes (How Toys Work)

Where is your brain exactly? What does it do? Use your brain to read this engaging, Spanish-translated title and learn all about it!

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 Spanish-translated book will be a hit with both thrill seekers and with those who prefer to stay safely on the ground. After an introduction to Newton's three laws of motion, readers learn the mechanics of various amusement park rides including roller coasters, Ferris wheels, merry-go-rounds, and gravity rides. They learn how to measure motion, and how kinetic and potential energy apply to their favorite rides. This 6-Pack includes six copies of this title and a lesson plan.

Adapted from the classic book by Johanna Spyri, this historical fiction book retells the story of Heidi. A student who forgot to complete her reading assignment texts her observations of the book to a friend while she reads and finds herself won over by the heartwarming story. Perfect for both reluctant and avid readers, this 32-page hi-lo chapter book will appeal to kids who enjoy imaginative retellings of classic novels with modern touches.

Montañas que se elevan hasta el cielo, volcanes que cortan la respiración, desiertos insoportables, ríos interminables, salares inmensurables... ¡Más de 25 destinos para quienes deseen viajar hasta "lo más" de nuestro planeta!

In one of his works, Barthes wrote; "If I was a writer and I was dead, I would like that my life be reduced through the care of a friendly and confident biographer, to some details ... whose distinction and mobility could be translated out of any destiny."And Calvet has made it.

Ésta es la historia de Abul Qasim, el médico del califa Abderrahmán III. Abul operaba cataratas, hernias y bocios; hacía traqueotomías, trepanaciones, amputaciones y, incluso, intervenía cólicos misereres.