@aaronrulz
Presentations and papers must be submitted before the cut off point of the semester (5 pm) but AFTER their final class. This allows the sim to get his final homework graded. For example, lets have a scenario where Friday is the end of the term. So if the classes for said subject are Monday, Tuesday and Thursday, you can submit your paper after class on Thursday instead of Friday. However, if you have an exam on Friday, it's safer to submit your presentation/paper after said exam because funnily enough, your sim still hands in homework on exam days. If you turn in the term paper before your sim hands in his Friday homework, that homework won't be included in his grades. And you may potentially get an A/A- instead of A+.
Alternatively, if you get the 'You're a stellar student' (some variant like that, can't remember the exact message) in your prof's feedback, it means you're in the As already. So you can skip the weird 'handing in homework' on exam day part and just turn in your paper earlier.
Hope it all makes sense and I didn't pull you in too many directions!