Thomas Edison

Even young readers were likely saturated with exposure to Hillary Clinton over the course of the 2016 presidential election. But do they really know who she is and what she has accomplished? This volume bridges the gap between current news stories and what elementary readers really know about the first female presidential candidate. By illuminating the life and story of this powerhouse of politics, young readers can learn and be inspired by a story of perseverance, service to others, and commitment to beliefs. With a vivid, age-appropriate narrative, this much-needed volume is sure to be...

" El presente volumen quiere ofrecer al lector contemporáneo un acercamiento, sencillo y serio a la vez, a la magistral " " tragicomedia " " de Fernando de Rojas. Por ello, en este libro se aborda la pieza desde la encrucijada histórico-cultural que la vio nacer, atendiendo a cuantos factores contribuyeron a generarla, pero sin abundar en especulaciones eruditas ni obviar la rica problemática que entraña. "

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 ...

If a person were ever face-to-face with a huge, hungry animal with sharp teeth, they probably wouldn’t care exactly what that animal was! But from a safe location, can we tell whether it was a crocodile or alligator that wanted to take a bite? By examining their jaw structure, teeth, and other physical features, we can easily tell these two animals apart! Graphic organizers and amazing images highlight each animal’s habitat and other small differences between the two fearsome creatures, showing readers just what creature is lurking below the waters.

Esta obra explica las principales habilidades matemáticas que permiten plantear y resolver situaciones matemáticamente. En ella se ha dado mucha importancia a la representación de las ideas matemáticas (dibujos, gráficas, tablas, esquemas...) porque ayuda a comprender y a resolver todo tipo de situaciones. Los temas tienen un carácter transversal, de modo que los aprendizajes puedan aplicarse a muchas situaciones diferentes. No obstante, están agrupados según los bloques curriculares habituales. Se ofrecen muchos ejemplos de aplicación de las matemáticas y se describen herramientas...