Many of Khan's critics advocate the constructivist school of education, which promotes experiential learning over lectures and drilling.
Perhaps the computer science will help in that regard. Although teachers told Wired last year that the Khan Academy materials helped improve test scores, many educators remain skeptical of the site's content's ability to provide a deep understanding of the material. One particularly scathing critique came from Mathalicious founder Karim Kai Ani, who criticized not just Khan's lecture-based approach, but the quality and clarity of the videos' content as well. That's part of what the push back about Khan's format is about.
He started out by filming lectures to tutor relatives, but since last year the non-profit organization he's formed has been pushing the site's content as a viable asset for traditional schools. Khan has a master's degree in electrical engineering and computer science from MIT and an MBA from Harvard Business School but has no formal background in teaching.
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