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HAOHSIANG LIAO: Here
at MIT, we usually

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require students to prepare
for a one hour class

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for about an hour and a half.

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So that's the time
that we expect students

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to give to this course,
because it's a 12 unit course,

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so that's a pretty
reasonable time expected.

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And students, they
can usually do it.

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But how can students, then,
make the best out of those 90

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minutes is a totally
different field,

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that so far we don't have
enough resources to know

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what do they exactly do
during these 90 minutes.

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Because too often,
students would

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say that I followed every
procedure that you recommended,

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but I feel the result is
not that satisfactory.

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What am I supposed to do more?

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And in this case, we usually
provide individualizations.

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So we have the students come
into our office and tell them,

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show me how you prepare
for class, and observe.

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So I give you 10 minutes.

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So you do your preparations
here in my office,

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and I observe, and based
on those 10 to 15 minutes

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students, I give
you my feedback.

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What I observe is A, you spend
too much on this and this,

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and you are too silent.

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You cannot be too silent
when you prepare for classes,

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because in class it's
about production.

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Productions are very
loud, so this kind

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of loudness or the loud
part should reflected

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from your preparation.

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And from the 10
minutes or 15 minutes,

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you're silent for 12 minutes,
which is not the case in class.

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Whenever student is say well, I
do this, this, this, and this,

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you really don't know how much
you can trust them in that way.

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So the best way to check is
to have them here and show you

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how they prepare for the class.