Cómo funcionan los parques de diversiones (How Amusement Parks Work) 6-Pack

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.

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 historical events. This primary source book focuses on the creation of the Transcontinental Railroad. 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 their grade level. Packed with information and primary source maps, images, and...

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...

Todos los textos poéticos de Serpientes y escaleras son breves, tanto en cantidad de versos por poema como de sílabas por verso. Asimismo, el poemario está compuesto por versos libres cuya estructura sugiere que la pausa se produzca justo después de artículos, preposiciones o pronombres personales. […] Además de los mencionados retos que propone el poemario, es notable la preocupación latente del poeta en cada texto poético por la palabra. O sea, se percibe la certeza de que el poeta “hace el amor con las / palabras / sin robarles su / virginidad”. El libro inicia con una...

In What Is Money?, early readers learn the fundamentals of money and the differences between coins, bills, and their worth. Vibrant, full-color photos and carefully leveled text will engage early readers as they discover basic economic principles.

En el libro se describe una tormenta el?ctrica, se explica qu? son los rayos y los truenos y se indica qu? hacer para protegerse durante una tormenta.

This book introduces you to giraffes, including their size, diet and everyday behavior, which highlights differences between those in the wild and those living in a zoo habitat.