Viaje a través de la Vía Láctea (A Trip Through the Milky Way)

The idea of the Roaring '20s conjures up images of speakeasies, women with short, saucy hairdos, and hot jazz. Readers will learn about the historical events that define this decade, including the devastating war that preceded it. An explanation about project-based learning will help readers understand how it can help them research their topic in unique and interesting ways. Constructive suggestions offer ideas for projects, while encouraging readers to take their studies in new and interesting directions.

This Spanish-translated book will be a hit with both thrill seekers and with those who prefer to stay safely on the ground. After an introduction to Newton's three laws of motion, readers learn the mechanics of various amusement park rides including roller coasters, Ferris wheels, merry-go-rounds, and gravity rides. They learn how to measure motion, and how kinetic and potential energy apply to their favorite rides. This 6-Pack includes six copies of this title and a lesson plan.

¿Por qué se nos tapan los oídos en un elevador? ¿Qué hace que los globos de aire caliente suban al cielo? Descubre todo lo que hace el aire en este maravilloso libro.

Soy grande? ¿Soy pequeño? ¿Siempre soy el mismo? No es tan fácil saberlo, pues hay dilemas en la vida que a veces ofrecen información contradictoria. En Yo se exploran situaciones cotidianas de los niños en edad preescolar, con el fin de guiarlos en su descubrimiento de sí mismos y de su realidad, a partir de su entorno, sus emociones, necesidades y límites.

Who were the earliest Americans? When, how, and from where did they enter and spread across the continent? And what is their relationship to modern Native Americans? Anthropologists develop theories to answer these questions based on the evidence they discover. Their theories—and the discoveries that prove and disprove them—are highlighted in this fascinating volume, full of awe-inspiring facts and incredible breakthroughs. Readers will feel like anthropologists and archaeologists themselves as they read about bones and artifacts, and what they reveal about the ancient cultures that roamed...