Electricidad Basica

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 nonfiction Spanish book teaches students about the earth’s cycles, and introduces them to important scientific concepts and vocabulary terms like combustion, hydrosphere, biosphere, and fossil fuels. The intriguing images, detailed diagrams, and stimulating sidebars will keep students connected to the text. The fun lab activity provides a real-world learning experience that supports STEM instruction. Aligned to state and national standards, the leveled text supports differentiation. Keep students reading with this fascinating Spanish book.

En una época de multiculturidad, en la que nuestro vecino puede ser de algún país que desconocemos, en la que nuestros hijos crecen al lado de otros niños y niñas de distintos orígenes, la colección «Caballo viajero» nos presenta las particularidades de algunas culturas del mundo de la mano de los personajes de la reina Trotamundos y el caballo viajero.

Sean Covey presenta los principios entredecíos en el fenómeno los 7 hábitos, para adolescentes y jóvenes. Este cuaderno inspirado por el clásico ensena los principios de los 7 hábitos para ayudar a los jóvenes manejar las situaciones más difíciles y decisivas. Solo como Sean Covey puede, el ofrece una este guía para que los adolescentes mejoren sus vidas familiares, académicas y personales.