Matemáticas en el cinturón de asteroides (Math in the Asteroid Belt)

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...

This historical novel will fascinate young readers as they learn about Mayan customs and lifestyle. A glossary of Mayan terms and authentic drawings will help children understand this highly advanced culture. Text copyright 2004 Lectorum Publications, Inc.

"Discusses the role of the oceans on Earth and introduces waves, tides, and water pressure"--Provided by publisher.

Guiar a un muchacho joven a tomar buenas decisiones le ayudará a pensar cuidadosamente acerca de sus decisiones, lo cual le asegurará una vida más plena y exitosa.En este libro, Jim George se centra en todos los momentos culminantes en la vida de un joven: las cosas que más importan. Los jóvenes podrán disfrutar de una mezcla equilibrada de conocimiento bíblico, anécdotas personales, y la sinceridad total. Y llegarán a adquirir las habilidades que necesitan para tomar buenas decisiones en respuesta a todos los retos que les salgan al paso. Guiding a boy toward making right choices...