In my class I print out the Grading Report every 10 days, since I only see them every other day. Then I take all the grades and average them. Well, I printed out the last report and in one of my classes 6 out 11 kids have N/A in every column. WDID? Should I give them zeroes for not doing anything for the last two weeks? I think that these kids are getting on the comps I can't see and going on websites they're not supposed to.