Matemáticas en el cinturón de asteroides (Math in the Asteroid Belt)

Mars is perhaps the most thrilling planet these days. With rovers exploring its surface and manned missions in the works, people are wondering if Mars is our next home! In this highinterest book, readers will learn more about Earth's neighbor, including what its climate and surface are like, why it's called the Red Planet, and about the recent discovery of water on its surface. They'll learn all this while solving "Your Mission" math problems that complement and support the text. This motivating volume is an engaging way to explore key aspects of science and math curricula.

The author recalls his childhood in the mountains and valleys of California with his farmworker parents who inspired him with poetry and song.

Luci ha decidido cazar las moscas que, zigzagueando entre las páginas de su cuaderno de tareas, le impiden concentrarse. Usará una red tejida con palabras y silencios: la red de sus versos. Poco a poco, los insectos que la niña atrapa en su poema invaden su imaginación: la radio zumba, su hermana es una larva, las gafas de su abuela son ojos de múltiples facetas; ella misma sabe volar, transformada en mosca de alas frágiles por el poder de la poesía. Los versos de este poemario zumban y cabriolean, invitando al lector a acompañar a los insectos - y a Luci - en su vuelo caprichoso.

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.

Looks at the life of Betsy Ross from her Quaker childhood to her days as an independent businesswoman. Also examines the legend of the Betsy Ross flag. Written in graphic-novel format.