Cursos Gratuítos On-Line

Cursos Gratuítos On-Line

Salman Khan: Let's use video to reinvent education

Salman Khan: Let's use video to reinvent education

edX: The Future of Online Education is Now

edX: The Future of Online Education is Now

Salman Khan: Let's use video to reinvent education

Salman Khan: Let's use video to reinvent education

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