Hi Lesley,
Awful classes happen to experienced teachers, too. We call it crop
failure.
If you can pull the troublemakers out individually--maybe during lunch or
planning time, and have a sit down chat, that sometimes helps. Calling
parents in for a conference can be effective. I have a heirarchy of
consequences for violating posted rules.
1. Copy all the rules. circle those youu violated. Sign the paper and
have parent sign it. This is due before you return to class the following
day. If it is not presented, I write a referral and send them to In school
suspension. I then call their parents.
2. complete a problem sheet: Same deal--must be signed by parent and
student
3. Write a problem solving essay. Also must be signed and returned. If
you would like copies of the assignments, I'll be glad to post them.