Take responsibility for what is covered:
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Too many instructors have been lulled into this new pedagogical notion that
the students should decide what gets taught in the classroom.  Not in my
classroom.  I have been around longer, have seen techniques come and go, and
because of that, I believe I know better than they what is important for them 
to know to be successful after they leave my course.  Ergo, I decide what gets 
covered.  I am very concerned about this fashionable notion of letting the 
students decide.  Many students want instant gratification -- a technique 
they can use today, whether or not it will be useful downstream.  It is up to 
instructors to take charge of what goes on in their classrooms.