Matemáticas en el cinturón de asteroides (Math in the Asteroid Belt)

A young boy eagerly awaits the birth of his brother or sister, while imagining that the baby is in a house inside his mother.

Advances in science have changed our world, all thanks to the scientists behind important discoveries. Some of the most important discoveries have come from female scientists, who were as unique for their work as they were for being trailblazers in a male-dominated industry. This text offers a biographical treatment of such important scientists as Marie Curie, Rachel Carson, and Jane Goodall, as well as others who have made it possible for women of the future to have a career in science. Age-appropriate text, fact boxes, historical and modern images, and a comprehensive timeline complete the...

"Uses simple text and photographs to describe how to make and use bar graphs--in both English and Spanish"--

Las canciones de corro, de comba, las retahílas, las canciones de juego, las de echar a suertes, requieren un ámbito lúdico cada vez más escaso. Ya no es tan habitual ver a los niños jugando al ritmo de estas canciones en parques y plazas. La escuela, el patio del colegio, se pueden convertir, con la colaboración del maestro, en el último reducto a partir del cual rescatar estas canciones y juegos del olvido. Este extenso repertorio forma parte de nuestro folclore y, si se pierde, estaremos relegando al olvido una parte importante de nuestra cultura.