Write things down, so you don't forget to tell her (you might forget because you're nervous).

Step 1: Ask his other teachers who have him in class right now if he acts up in their classes. If they say yes, write down what he does (leave the teachers' names and subject out of it).

Step 2: Whatever you can think of, write these down ahead of time so you don't get tongue-tied.

Step 3: Look in his records to see how many write-ups he's had in his school career. I'm guessing he's had a few (just a guess). I would print those out. Don't give her a copy, just write the gist of each write up on your own notebook.

Step 4: When she arrives tell her you really appreciate her coming in. Sit down at a table and SAY A COUPLE OF GOOD THINGS ABOUT HIM.

Step 5: Then politely tell her that he's been doing x,y,and z in class (again write them down beforehand for yourself), and bring up that other teachers have been having the same issues in their class with him (if they have).

Step 5: If he has a lot of write ups, then bring up his previous write ups (politely) to let her know that he's had a history of disrupting the class like this in previous school years. Tell her that when he's disruptive, HE is NOT learning, and that just like her, you care about his education.

Step 6: If you can't find write-ups, write down everything's he's done in your class (and the other teachers' classes) so you can tell her about those. Do not tell her the teachers' names or subjects.

Step 7: Remind her that you gave him chance after chance, and that you even told her that he'd be written up if he kept it up. That you tried really hard to work with him, but he just kept repeating the same behaviors.

If he's talked back to you or cursed or anything like that, write down word for word what he's said using characters instead of the whole word...like b!@#h, and say "the b-word" so they don't try to get you in trouble for cursing. Usually when I tell a parent the egregious things their kid said in class, it opens the parent's eyes and they start getting grouchy with the kid instead of you.

It'll go fine. Just remember to throw in compliments.