Líderes de la comunidad ebook

Readers may never expect that they might free fall to Earth, but if they have ever dived into a pool, that's exactly what they've done. This book shows readers how Newton's three laws of motion affect divers, skydivers, and mountain climbers' movements. Readers discover who uses gravity, and who works against it, and all other forces that contribute to a successful dive or climb. After reading this book, readers can decide if they will ever be interested in engaging in one of these extreme sports.

Ahora en español, la verdadera historia del juguete favorito de todos los niños en el verano, la Súper Pistola de Agua, y cómo fue inventado por accidente. Mientras trataba de crear un sistema de enfriamiento para refrigeradores, Lonnie Johnson inventó sin quererlo el mecanismo de este emblemático juguete. Cuando era niño le encantaban los cohetes, los robots, todo tipo de inventos y, sobre todo, la creatividad. Gracias a su pasión y persistencia por resolver problemas, llegó a ser ingeniero y a trabajar para la NASA. Pero dio el gran salto a la fama cuando inventó la Súper Pistola ...

How do you truly engage students in learning history? When students make personal connections to the subject, they're much more motivated to learn. This Spanish book provides firsthand accounts of history that give personal insights into what life was like during Westward Expansion. Students will learn about the reasons people headed west, the gold rush, the Homestead Act, Manifest Destiny, the Oregon Trail, and more. With a visually appealing layout, this book features captivating text, fun facts, sidebars, and time lines that help students grasp the essential concepts they need to know at...

In this inspiring biography, readers will learn about the incredible journey of Helen Keller. Using informational, Spanish-translated text and expressive images and photos, readers will discover the undeniable determination that Keller had as a young deaf and blind girl and how her teacher, Anne Sullivan, helped her to read, write, speak, and graduate from college. With a timeline, a bibliography, and a glossary of terms, children are given the tools they need to expand their knowledge about this fascinating and inspiring woman.