A la vanguardia: Adelantos en tecnología (The Cutting Edge: Breakthroughs in Technology) 6-Pack

Readers won't have to disassemble their favorite toys to discover what makes them work. This book explores electric, magnetic, and motion-powered toys from design to function. It introduces readers to the six simple machines and explains how they use force and motion to do work. Not every toy is a technological marvel. Readers learn about time-honored favorites including the rocking horse, Slinky, and rattles.

Un cuento para aprender a superar la frustración en el juego. A Filipo le encanta jugar a las escondidas y siempre gana. Pero esta vez Amelia lo encuentra y debe enfrentar su frustración para seguir jugando. Luego del éxito de ventas de la colección Filipo, la psicóloga Andrea Cardemil continúa la serie con un título para enseñar a los niños a trabajar las frustraciones durante el juego.

Recounts the life of Cuban violinist Claudio José Domingo Brindis de Salas, a black child who was born free and began his career as a musical prodigy to become a noted concert musician in Paris, while slavery still existed on the island.

Cynthia Ann Parkers family moved to Central Texas when she was about nine years old. A year later, a large force of Comanche warriors attacked Fort Parker and seized Cynthia Ann and four other captives. The other four were eventually released, but she lived among the Indians for 25 years, immersed in the Comanche way of life. Though given a number of opportunities to go back to her white family, she always chose her life with the Comanche, choosing instead to stay with her husband and children. She eventually returned to white society as an adult.