Las cadenas alimentarias en el desierto (Desert Food Chains)

Computer science is all around us, at school, at home, and in the community. Anyone can learn computer science, even at the elementary school level. This book delves into essential computer science concepts using age-appropriate language and colorful images. The computer science topic is paired with an age-appropriate curricular topic to deepen readers' learning experience. The instructional guide on the inside front and back covers provides: Vocabulary, Background knowledge, Text-dependent questions, Whole class activities, and Independent activities.

Spanish speakers can now learn the truly inspiring story of the first Latin Supreme Court Justice. Los hispanohablantes pueden ahora conocer la historia verdaderamente inspiradora de la primera jueza latina del Tribunal Supremo. Outspoken, energetic, and fun, Sonia Sotomayor has managed to turn every struggle in life into a triumph. Born in the Bronx to immigrant parents from Puerto Rico, Sonia found out at age nine that she had diabetes, a serious illness now but an even more dangerous one fifty years ago. How did young Sonia handle the devastating news? She learned to give herself her daily ...

Examines The Properties Of Matter, The Use Of Energy From Gasoline Or Batteries, And Various Other Sources Of Energy.

Dados los problemas medioambientales y económicos anejos al uso de combustibles fósiles, crece cada día el interés de formar a nuestros estudiantes en las energías renovables. Ahora bien, por experiencia sabemos que, cuando un alumno empieza a adentrarse en tales energías, se topa con ciertas dificultades sobre todo en el caso de la energía solar fotovoltaica. Ello se debe en ocasiones al desconocimiento de los fundamentos físicos de la célula solar fotovoltaica, o de las leyes que rigen la radiación solar, o de ciertas nociones básicas de electricidad... Esta obra trata justamente ...