I teach high school. One of my students, whom failed this class last year, is causing a lot of disturbance and chaos in my class. His IEP says he has ADHD. However, it lists no behavior modifications for him. The only modifications are academic (they're extreme modifications e.g. reading tests and instructions to him). I've contacted his SSD teacher but no response. He picks on other kids, has loud random outbursts, will not stay in his seat. It's chaos when he is present. I've tried talking to him to the side, in the hall, after class. I've tried encouraging him. I also stick close to him so I can give him individualized attention on his work. I've tried switching his seat. Any suggestions? Thanks!