“My teacher is picking on me”

I am in high school, and a pretty good student, known for being well behaved. Last semester I had gym with the teacher now teaching me science. She isn’t very good, but last semester I made an effort to be good to her, because it is her first teaching job and I wanted to be helpful.

This semester, however, I’ve had a really hard time concentrating in her class because she doesn’t control behavior, and other students are really noisy. I tend to not pay attention sometimes, and I know that it’s wrong, but no one else in my class pays attention. I get grades between 85 and 100 in her class.

The other day she yelled at me in front of the class and then told me to meet her after school to discuss my behavior. During the meeting I felt really bad, apologized, and promised to make a better effort. These last two weeks I have been copying all the notes and paying perfect attention, yet she still gives me terrible looks and says harsh things to me. There are students who yell at her, insult her, and act dangerously in her class and she says nothing to them, but continues to pick on me. What should I do? All my friends are angry about the way she treats me, but I just feel confused. I don’t want her to feel badly, I just want to make it stop.