My school is so stupid?

I think teachers should treat every student equally. It's only fair...But remember, you will always encounter a teacher that upsets you, or makes you miserable. Every teacher has their own ways of teaching, and acting. If this continues to bother you, and you feel like he is racist or treating each kid differently, I would definitely talk about this to the principle. Make your point clear, and your principle should listen. And definitely don't hang around kids that get you in trouble. Just act your best in class, and do your best. Remember that you won't be having this teacher for the rest of your life.