Saturday, August 23, 2014

Educational Video on Educational Videos

Derek Muller "completed a PhD in physics education research from the University of Sydney in 2008. His thesis, Designing Effective Multimedia for Physics Education, was the subject of his TEDxSydney talk in 2012..."

And the talk (6 minutes) is here:
The principal result seems to be that, at least for his subject (simple physics, e.g. of a tossed basketball) and his subjects (introductory university physics students), it can worse than useless to provide a simple, clear, comprehensible demo of what you're trying to explain, and then test them on it. Their answers will not improve, but their confidence in those answers will rise. Why? They will actually remember statements that definitely weren't in the short video they just saw, statements that accord with their existing misconceptions, and those misconceptions will be reinforced...

Huh? Does that even make sense? Sure: they report low engagement on the clear, comprehensible demo... They're not really listening as long as they think they understand the events (and annotations) in the video, so it just reinforces what they think they already know.

How to fix this? Muller's answer: cover the misconceptions first, and use dialogue. Yes, you will annoy people who think you're actively trying to make them feel dumb, but if you don't cover the misconceptions they will not engage.

Ok, it's interesting, and it could be crucial for almost all kinds of education of almost all kinds of students, too. Start With The Misconceptions. Have A Dialogue Character Representing the Teachably Wrong Point of View. Yeah. But for some reason I'm thinking of a dialogue that started with the misconceptions, started with a character named Simplicio, Galileo Galilei's
Dialogue Concerning the Two Chief World Systems which appeared to attack Pope Urban VIII, thus alienating not only the Pope but also the Jesuits...
It is not always wise to clarify misconceptions, at least not from the perspective of wishing to avoid arrest.

Or then again, maybe it's worth it. 

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