Answer:
A piece of paper that determines the academic fate of kids everywhere.
What is really easy to get into but really hard to get out of
Poorly behaved children often find themselves sitting in these.
What can point in every direction but can't reach the destination by itself
I weaken all men for hours each day. I show you strange visions while you are away. I take you by night, by day take you back. None suffer to have me, but do from my lack.
Iām grown from darkness but shine with a pale light. Very round I am and always a lady's delight.