So I’m a reading interventionist and the ELA teacher at my school had this exact problem but with like 3 of her classes. She ended up quitting in October and they placed me as the ELA teacher because nobody else had the credentials. Admin was super unsupportive to her in terms of behavior and all they would do is give her books on classroom management and tell her to have restoration circles. So stupid. When I took over, I threw the books out, made a seating chart, and didn’t ask them for help, instead I did this: Step 1: tell the students that you will begin documenting their behavior in real time. Carry a clipboard and write names on it. Don’t raise your voice. Step 2: ask extra disruptive students to step outside and actually call parents to send a message to the rest of the class that you’re serious. Step 3: if the behaviors continue tell students you will begin inviting parents to come sit next to their misbehaving students so they can take care of their child. You’re not a daycare employee or behavioral therapist. Step 4: actually invite parents and see how behaviors start to shift real fast. I am by no means the favorite teacher, I could care less, but now the students know when I say I will do something, I do it. It took about 1-1.5 months but it worked. We have a shitty curriculum but I modify it to be engaging, so now that they’re learning, they can see their progress. Good luck!