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Arteguias: Historia De La Cruzadas
A history of the religious, politic an military movement of the Crusades.
Ministry of Education and Employment of Spain
Red Escolar: Un Problema De Caballos
In Spanish. In chess there are many mathematical problems related to the way the pieces move on the board. Chess is more than just a game. By playing chess students can develop their problem solving skills. Several chess activities are...
Instituto Latinoamericano de la Comunicacion Educativa
Red Escolar: Manuel Alvarez
This site contains biography and a photo gallery of the famous Mexican photographer Manuel Alvarez.