Celebremos el Día de Cristóbal Colón (Celebrating Columbus Day)

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...

Esta obra reúne textos escritos por Andrés Lira sobre el exilio español y los maestros de ese exilio, como: José Medina Echavarría, José Miranda, Ramón Iglesia, Juan Antonio Ortega y Medina, Eugenio Ímaz y José Gaos, quienes han formado parte tanto de la Universidad Nacional Autónoma de México como de El Colegio de México.

En el año 1630, la caza de brujas siembra el pánico en toda Europa. Mujeres y hasta familias enteras son víctimas de la inquisición. En un pueblo de Alemania comienzan a surgir rumores acerca de Nina y sus visiones premonitorias. Al ser las amenazas cada vez más siniestras, Nina abandona la casa de sus tíos portando el amuleto de su madre, a la que quemaron por bruja tiempo atrás. Ese amuleto la orientará en todo su camino.

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 algorithms and procedures. 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 algorithms and procedures work in the real world. In this book, readers will learn how flowcharts can be used to teach people how to complete a...