¡Sin resolver! Lugares misteriosos

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 6-Pack includes six...

Learn how a designer's sketch becomes the fashion we wear and how a designer uses math and geometry to make their designs successful in this fashion-filled book! Including information about the fashion industry, clothing fabrics, patterns, and textures, readers learn all about the different aspects of the fashion industry. With a glossary, index, vivid images, informational text, and interesting facts, this Spanish-translated nonfiction book will engage students from beginning to end. This 6-Pack includes six copies of this title and a lesson plan.

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.

"... se les habían subido los humos y se creían los reyes del mambo, violando viudas de trabajadores y robando todo lo que olía a republicano..." "... yo ya estaba un poco cansado de oír siempre lo de rojillo, me salieron hasta canas del miedo que pasé, una granada que cayó cerca de mi trinchera dejó sin las dos piernas a un pobre muchacho de mi quinta, el teniente que lo vio le descerrajó dos tiros en el acto para que no sufriera..."

Mammals are a very diverse group. From whales and dolphins that give birth in the water to platypuses that lay eggs, these life cycles can often seem very different. However, they’re very similar. Readers learn the basic structure of the mammal life cycle through simple language and accompanying diagrams that show the cycle step by step. The main content offers a way for struggling readers to more easily learn an important science curriculum topic, but can also be a great review tool for any reader.

This complete Spanish translation of the highly acclaimed Isaac Asimov's 21st Century Library of the Universe is ideal for students still developing their English-language skills.

James Hoff tiene diecisiete años y no sabe muy bien qué quiere hacer en la vida. Solo sabe que el mundo se abalanza hacia la destrucción total, pilotado por una raza de seres (los humanos) ávidos de dinero y habituados a lujos tontos a los que no son capaces de renunciar. Sí: la situación es desesperada, y no hay nada que se pueda hacer al respecto salvo escribir textos furibundos que, al final, solo lee el profesor de Lengua. Si al menos Sadie Kinell cortara de una vez con el pesado de Will y volviera con James, tal vez este pudiera ver el mundo de manera diferente. Pero eso es tan...