Energía del viento (Wind Power)

Life Long Ago brings ancient civilizations to life and reinforces important early elementary social studies standards such as time, continuity, and change. Students will learn what daily life was like, how ancient peoples governed themselves, how they communicated, and how the influences of ancient cultures are still felt today.

Una visión personal para todas las edades de este importante evento que cambió el mundo.En 1989 cayó el muro de Berlín, un muro que no solo separaba las dos Alemanias, sino que dividía la Europa democrática y la Europa comunista. Hoy, 20 años después, el prestigioso ilustrador checo Peter Sís, por medio de sus diarios, comentarios y sobretodo ilustraciones, nos da a conocer el antes y el después de ese suceso tan importante de la historia reciente.

Animals hide to avoid being eaten or to sneak up on animals they want to eat. This amazing book introduces children to some basic science concepts. Fascinating photographs feature animals that can change color, or that have different shapes and patterns, so that they can blend into their surroundings. A special section also features animals that do not need to hide.

Describes the U.S. Air Force Thunderbirds, including their planes, the maneuvers at their air shows, and team member duties. Written in English and Spanish.

An ideal book for young Spanish students; proposes a new progression that promotes language acquisition and consolidation of contents, offers numerous grammatical and lexical and formal practice aid activities within the unit and contains a competency evaluation at the end of each chapter.