Fundamentos de energía solar fotovoltaica para los grados de titulaciones científico-técnicas

Using helpful charts, graphs, informational text in conjunction with vivid images and intriguing facts, this engaging, Spanish-translated title allows early elementary readers to explore the ecosystem, plants, and animals of the deserts around the world.

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...

Las relaciones que establecemos al interior de la familia son determinantes en el futuro de cada miembro de ella; muchas veces el camino al éxito personal, profesional o público, se ha cimentado sobre la sólidas bases de buenos grupos familiares. Entonces, aprender sobre cómo fortalecer estos lazos familiares es una tarea de primera importancia; considerando que el éxito futuro depende de las fortalezas familiares que se logren hoy día. Los textos de esta serie están diseñados para mejorar la comunicación y la interacción de los niños con sus parientes más cercanos, posibilitando...

Aprenda los colores del arco iris siguiendo un texto lírico. (Learn the colors of the rainbow through the lyrical, rhyming text!) "I’ve learned my colors: green, red, and blue, yellow, purple, orange, and now I’m through." From shiny red apples, to purple violets and yellow bumblebees, the high-quality pictures will have children learning colors quickly. Learn simple English words and phrases with the corresponding version Green, Green Froggy.