I do not allow weekly work (homework, quizzes)
to be ``made up''. Instead I discard the two lowest
scores at the end of the semester. I am not discarding
these scores because I am a nice guy. I am discarding them
because there are times when you have a legitimate reason
to miss a quiz, and a policy of discarding the lowest
two scores allows you to know (in advance) that you have
nothing to worry about if you have to miss a quiz.
You just can't miss too often!
Sometimes a student will tell me that s/he has
already missed two quizzes and now s/he has to miss a third,
but for a perfectly justifiable reason this time!
My response is: All reasons are perfectly justifiable
in this class. But you are only excused twice.
(In other words, NO MAKE-UPS!)