This exam is worth 20% of their final grade. I simply do not know what to think. I have a 'no late work accepted' policy clearly stated in the syllabus so I am disinclined to offer extensions. Usually I give 0 points for work not turned in, but I could give then 50 points that would represent an F, but then what do I do with exams that were turned in that merit a failing grade? I have told students that I take improvement into account when determining final grades, but how is simply turning in a exam an improvement over not turning in an exam? I can drop these students from the class for not doing required work. Or, I can simply let them take their lumps and deal with the total points they have earned at the end of the semester and give them the grade they merit.