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> Effectiveness of Science Videos http://www.youtube.com/watch?v=eVtCO84MDj8

The biggest flaw in the "Effectiveness of Science" (EoS) video is that it criticizes khanacademy videos by showing that vastly inferior videos don't work. Khan videos are good because they make it easy to think: there are no distractions, just a blackboard and an intelligent voice "in your head" guiding you through the problem domain. In the EoS video, the failing videos try to teach physics by featuring the face of a talking girl with a guy juggling in the background. He might as well give his subjects a physics book and turn them loose in a sports bar to study while following NCAA basketball. Neither method is a good one for learning physics. What's sad is that the maker of the EoS video is not just some crank on the internet, but apparently a newly minted PhD in education who will likely end up teaching teachers or running a school system and it's obvious that despite his vast "education" this guy has no clue how to recognize good teaching.



The point of the EOS video is that trying to make it "easy to think" results in students retaining prior misconceptions, and therefore thinking they have learned when they actually haven't. Learning is hard.

I have seen some of Khan's physics videos. I can tell you from years in the classroom, students exposed to those videos as an initial learning experience will change absolutely none of their misconceptions. None. Not one, no learning, just a warm feeling of thinking that they agree with what's been said (even though they don't agree with it at all).

Now can a student who has already addressed her misconceptions (in a classroom, by doing experiments, then discussing, arguing, trying to predict new situations and then trying those situations) gain some advantage by using the videos as review? Perhaps so, and I wouldn't fault a student for making this part of her review. It's more likely my students would end up gleefully eviscerating the video.




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