did you check diet

Make sure to limit his sugar intake, especially in the morning.  For example, I make own smoothie (greek yogurt, 1% organic milk, and frozen berries) mixed with flaxseed and fish oil, instead of store-brand yogurt which is loaded with sugar.  Eggs, ham, wheat bread, and etc.

Maybe incentive plan?

Sounds like you get a good teacher.  Be cooperative and appreciating.  Don't take "bad day" and ask for details of incidents, so you might role play at home.

If indeed out of control, medication is a choice.  My friend swears medication helps and her son is an honor student.