my teacher curves; the highest grade on an exam gets curved to an 100(I’ve gotten several 100s, but without the curve the lowest grade I got was a 70). and ap classes are weighted!
Most teachers just offer extra credit, but do not curve.
Stat usually offered extra credit, but did do the square root curve on the midterm and last test
At my school AP students do not receive curves on tests, only regulars kids kids get a curve which is a +10 point bonus to their initial grade. Although, we do not get a curve on our tests, we do however great a very generous boost to our GPA which the regulars kids to do not receive.