For those who teach the upper grades, how do you deal with discipline? I taught 8th graders for 5 years and there were a lot of behavior issues to deal with. We used 30 minute and 1 hour before or after school detentions primarily and then office referrals. But now with this new age group, I don't know what's appropriate. I don't anticipate having a lot of issues (4 of my 6 sections are 12th grade AP) but I still want to go in with a solid plan.