El ferrocarril transcontinental (The Transcontinental Railroad)

Es un material flexible que ofrece diferentes posibilidades de uso: Atender a alumnos con desfases curriculares o con carencias sobre contenidos anteriores.Ofrecer materiales complementarios para programas de diversificación curricular.Facilitar el aprobado del curso cuando la materia ha quedado pendiente.Estudiar y repasar los contenidos del curso durante el verano.

English-Spanish bilingual edition teaches young children simple manners and kind behavior. When children are kind, courteous, and respectful, people enjoy being around them and reciprocate with the same behavior. Use this English-Spanish bilingual book to teach manners and help young children understand the importance of showing politeness, speaking kindly, using basic courtesies (“please,” “thank you,” “excuse me”), and respecting the feelings of others. A section at the back of the book, in both English and Spanish, provides questions for discussion, scenarios, and role-play...

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...

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.