I recently taught - and indeed am still teaching as they advance through the course - a group of students who almost uniformly turn in work late. Mind you - it's not OVERLY late - they just might not have it turned in on time. Since it's a small class I find it difficult to continue (or even begin) a lecture or demonstration when about 4 of the 7 students are still rushing to finish their last little bit of the last assignment.
I already generally drop their grades from the late work - as I understand that it mirrors real world deadlines - but it doesn't seem to matter. Should I just start *failing* or *not accepting* late work - even if it's just thirty minutes or so late? Just to get the point across?
How can I stress the importance of due dates *without* dropping the class average to D's and Fs?