Desafíos matemáticos

El siglo XVII constituye un periodo clave en la historia de España, de Europa y del mundo. El monarca Felipe IV se inclina con mayor facilidad a los juegos y entretenimientos de toda ralea, mientras que el reino desfallece en malogradas batallas contra los ingleses y los franceses en lidia para arrebatar las riquezas del Nuevo Mundo. La historia de España se nos desvela bajo un prisma original, que gira alrededor de los personajes retratados por el gran pintor don DiegoVelázquez. En medio de la vida disoluta del Alcázar, la infantita Margarita recorre salas y corredores protegida con el...

Presents information about super jumbo jets, looking at the history and development of jets, discussing various aspects of design and construction, and exploring different types of jets, including the Concorde and the Airbus A380.

Biography of Elizabeth Cady Stanton, a leader in the fight for women's right to vote in the United States.

Worksheets designed for use in Spanish immersion classrooms, as a supplement for parents to use with their children for extra practice, or for use by any classroom teacher who wishes to incorporate Spanish instruction in the classroom in the curriculum areas of language arts, math, social studies, and science.