Your teacher seems to be disappointed. You're the smartest student on the class, and you don't know why she's so angry. She's going to give the tests back to each of the students, but when she gives your test, she says:

I want to talk with you, your break has been suspended until you explain me why you got the lowest results on this test.

Whenever she says this to some student, it already should start running, or something awful happens...

The bell rang, and all of the students went out of the classroom, except you. She goes to your desk and shows the test paper with an F- written on it

Now, explain me. Ever since your first day on school, I knew you were the smartest student on this class, but why you got the worst result on this test? Is algebra way too hard for you?