Lo mejor de ti: Ganar o perder (The Best You: Win or Lose)

¿Te atreves a entrar en el Laboratorio de Plagas de este libro? Aquí estudiamos la historia de las enfermedades más terribles. Si te contagias de alguna, te pondrás enfermo. O peor aún. Muchas de esas enfermedades peligrosas se propagan rápidamente, y entonces miles de personas enferman y mueren: es lo que llamamos una epidemia o plaga. Pero... ¡no te asustes! También estudiamos las soluciones para erradicarlas y te presentamos los tres tipos de gérmenes (los protistas, las bacterias y los virus) y cómo combatirlos. La repugnante historia de enfermedades mortales, explicada por las...

Computer science is all around us, at school, at home, and in the community. This book gives readers the essential tools they need to understand the computer science concept of simulations. Brilliant color photographs and accessible text will engage readers and allow them to connect deeply with the concept. The computer science topic is paired with an age-appropriate curricular topic to deepen readers' learning experience and show how simulations work in the real world. In this book, readers learn about American Revolution reenactment and how it simulates events from the past. This nonfiction ...

In 1789, George Washington became the first president of the United States. With over 100 black-and- white illustrations, the fascinating story of "the father of our country" comes to life in Spanish - revealing the real man, not just the face on the dollar bill!

Spanish speakers can now learn more about the most famous championship series in all of baseball: the World Series! Los hispanohablantes pueden ahora conocer más sobre la serie más famosa del campeonato de béisbol: ¡la Serie Mundial! "Strike three, you're out!" "He's safe!" "Home run!" Every October, millions of baseball fans around the country anxiously wait to see which team wins baseball's biggest championship. But the original games of the 1900s hardly looked like they do today. Take a look back over one hundred years and discover the history of baseball's greatest series. With...