1 de mayo de 2012

ELABORACIóN DE CONTENIDOS RECURSOS DOCENTES
A free world-class education for anyone anywhere. The Khan Academy is an organization on a mission. We’re a not-for-profit with the goal of changing education for the better by providing a free world-class education to anyone anywhere. All of the site’s resources are available to anyone. It doesn’t matter if you are a student, teacher, home-schooler, principal, [...]
7 mayo 2012