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David Hestenes on the value of lectures: "no evidence that students who attend lectures learn more than those who don’t" http://bioliteracy.colorado.edu/Readings/WhoNeedsPER.pdf … (Accords with my n=1 experience: the value was in time spent stuck, time spent solving problem, reading, and talking with others.)pic.twitter.com/GILz4LfoJI
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The first 15 mins of Eric Mazur's discussion here are gold: https://www.youtube.com/watch?v=WwslBPj8GgI …. Recounts his shock at realizing that his (very highly rated!) teaching at Harvard was, essentially, teaching his students nothing. His account of that starts at 13:15.
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You have to be really careful interpreting outcomes if students are freely choosing whether to attend lecture. Does the study address this?
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It's many studies. I haven't looked carefully at all the designs. (I imagine it's usually not possible to do this, for ethical reasons: you mostly can't assign a student to the "no lecture" group.)
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i took one intro to analysis class M/W/F 8am where prof talked for 5 min max and then it was all small groups at blackboards doin proofs, guided by handouts, prof wandering & nudging. astonishing how well it worked & how much better retention is now, ~5yr later. & i made friends!
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No doubt about it; I didn't understand a word of my 1st Engineering Physics lectures because I didn't have the right maths, at the time. After I taught myself the missing maths bits, I self-taught the entire 12 month curriculum in just 2 weeks (& passed comfortably)
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Hestenes and Mazur's results can be summarized as "The evidence shows that traditional lectures are not a good way to teach conceptual understanding of physics" BUT we don't have evidence to generalize this to all lectures in all subjects and for all type of learning objectives.
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My 2 cents - I think different people learn different ways. I really like having a visual component, and an audio component helps to. That plus being able to ask the professor questions in real time, meant that for me personally, I did really well with lectures.
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n >= 2. But lectures did provide a nice environment for actually engaging with the subject matter. Would not have wanted it any other way!
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