I have been having problems with a parent ever since I pulled her aside after school and told her that her son being late to school (20 minutes) twice a week was interfering with our classroom routine. Ever since then she has taken issue with me and my behavior management plan. (I have a clip chart behavior system with a warning before a 5-minute recess loss). She says that the system is causing her son to dislike school. Honestly I think he is spoiled. He brings toys to school, loses them, and accuses kids in other classes of taking them. Then his mother interrupts other teachers to complain about their students taking his toys. He is performing below grade level, which I have communicated to his mother at the last conference, with tips and ideas on how she can help at home. That conference went very well (it was before I spoke to her about tardies). Now she has requested a conference a month early to discuss his progress. I don't want this to get negative, but I'm sure she has something in store for me. How do I make this conference productive?