My school has a system where every two weeks the teachers are required to report all the students' grades. The students with grades below a c- are required to attend two extra-help sessions, where they can work on homework with teachers available to help them.
In my art class, we are required to turn in three drawings each week. I got perfect grades on my first set for the semester. The second set I turned in late. The teacher didn't grade them until after he posted grades. So now I have to find time to attend two 30 hours sessions, to fix a problem that I don't have.
