A few things. Are you aware of the turnaround rate for new teachers now? People who get into teaching now are getting out just as quickly. The reason? Too much beauracracy and too many students with apathetic and/or disruptive attitudes. Students are unruly these days because they're allowed to be by everyone- their parents (who are number one to blame- they get them before teachers do), their teachers, the administration, and anyone who labels a kid as having an attention disorder simply because he's too disrespectful to pay attention and behave. Parents side with children first (who are notorious liars, even when they're the super nice oens) before the professionals (whose every move is questioned and challenged). Principals side with the parents to avoid local news coverage.

This of course isn't meant to suggest that teachers have the right to yell at their students all day. It certainly is meant to suggest why they might be at such a high frustration level.

Whoever said you were being unfair in telling your story was right. There would be no yelling if there were no disruptions.

My suggestion would be to schedule a conference with your child's teacher and bring your concerns to light. Do so in a calm manner without placing blame on her (it's what we teachers do when conferencing- fight fire with fire). Let her know that you've noticed your son has become increasingly sensitive and often feels like HE is in trouble for what the class does. Tell her that you want to make sure that your son isn't misbehaving, and that if he isn't, you would like suggestions from her on how to ensure him that he's doing well and not at fault. Perhaps she's unaware of just how unhappy and frustrated she's gotten. If your son really is a polite, respectful sweetheart, it will most likely break her heart to know that he's taking her yelling personally. I know it would break mine. At the end of my first year of teaching, one of my best-behaved students drew a picture of one of her school memories with the caption "Everyone is yelling." Because the drawing was crude, I couldn't figure out if she meant that everyone was yelling because people misbehaved (and I yelled back) or if everyone was yelling because we had such a good loud time (quiet isn't always a good thing when having fun & learning). I took the picture to mean the former and vowed to always act rather than react. Sometimes all it takes is one good kid being spoiled by the rotten ones (and by rotten I don't mean really rotten) to make a teacher aware that she's gone too far.

Best of luck with your situation. Please don't transfer schools. I think that's a silly idea, and it's most certainly not addressing the issue head on.