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| Tutorials on interference |
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| and diffraction |
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| • | A
series of 4 one-hour tutorials on interference |
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| and
diffraction |
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| – | focus
on qualitative reasoning |
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| – | concentrate
on difficulties know to exist from PER |
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| – | use a
cognitive conflict model to engage |
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| student
interest (predict / observe / resolve) |
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| – | stress
logical coherence |
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