I plan on teaching an Algebra 2 course using the TBL model in a high school setting. Students are generally very good about coming to class; however, they occasioanlly miss class because of illness. How should I handle these students? Should I not give them team points for the day? I don't think I can give them the quiz after the fact as they are prone to "help" each other out on these sort of make up assessments.

I am also looking for some help from any other high school math teachers that may have done this with their kids. What sort of group assignments did you give?