Teachers Postponing

Why is it that the last few days of school always seem to have more work than the entire semester. This was true in highschool and seems to be true in college. Every class I have has a test or paper due this week only consisting of three days. Thats ridiculous in my opinion. I dont know how everyone else feels, but would like to. I am always curious if teachers time things wrong and end up having to squeeze things in or if its planned. I doubt its planned because they are only squeezing more work in for themselves. The problem however, whatever the reason may be is that it forces us to do sub par work. Instead of having ample time for each test or paper, we have to split amongst five big things. There is no way to have good time management for 4 test and one paper in three days. Im not trying to complain but simply understand why it always seems to happen, year after year. Are you guys as overwhelmed as I am? Do you guys feel that there is more work than can be handled in these three short days? I would love to know. With finals approaching we should be able to focus on that not last minute test we have to cram for. The worst part is this last minute test will somehow find its way right back to the final. I'm not sure where I'm geting bringing this up, I guess I figured I could vent on here. Please let me know if I'm alone or not.