Annie Oakley (Spanish Version)

Disponible en edición bilingüe inglés-español, esta exitosa serie ofrece importantes e interesantes temas científicos para hacer pensar a los más pequeños. Con la exactitud de un experto y la sencillez para que lo entienda un niño, Quarks explica los principios físicos y químicos básicos de las partículas (quarks, protones, neutrones, átomos y moléculas) y los relaciona con el mundo del bebé. Contiene atractivas ilustraciones que se complementan con un lenguaje apropiado para que el bebé se maraville. Y no solo el bebé... ¡padres y cuidadores también pueden aprender mucho!...

This book describes dump trucks called off-highway trucks, explaining their operating equipment and dumping beds, fuel, and jobs.

Mathematics constitutes ideal material for exercising the art of learning and thinking. For this it is necessary that the classroom has a stimulating atmosphere which requires determined attitudes and beliefs. The book combines theory and practice and responds to questions such as these: to think in the mathematics class? on what does the knowledge of solving problems really consist of? what are the beliefs and which are the most common ones among the students? how to diagnose, evaluate and, in some cases to modify, the systems of beliefs of the pupil?).

During the American Civil War, the United States was on the brink of falling apart irrevocably. As states seceded and brother turned against brother, hope for reconciliation was dim. This conflict, an essential topic of the social studies curriculum, is skillfully presented from its origins in the Southern slave-trade economy to bloody battles and, later, Reconstruction. Striking photographs and artwork of integral events and people will resonate with readers, while interesting sidebar information gives them more to reflect on about this terrible war and the lessons it taught us.