Ask HN: How do you form a queue of students for passing individual assignments?

I'm sure many of you had dealt with some kind of personal tasks/projects handed out by teacher to everyone in group. Then you probably would had an extra class specifically for presenting you work, where your group forms an queue of who is going next. At my college we usually have 3-4 tasks that should be completed by the end of semester and by the deadline of 2nd task it is already a mess. Should I let ones who fall behind go first so they don't accumulate unfinished tasks? But at the same time I want to get rid of this as fast as I can, and it's likely that dummies won't pass even on 3rd try, end up just wasting the whole class hours.