Every year when a child has an IEP meeting their parents may be asked for parental input. Parents may also be asked for input when the child is being evaluated to see if they need special education.
The school more than likely will give you a form to fill out. The form may give you the opportunity to provide input for social, behavioral, and educational concerns. List what you see and what concerns you as it relates to the student in school. This is NOT a time to list family or divorce issues. It is also not the time to bash their current or past teachers.
It is the time to list that your child may learn differently than is being taught or is having problems socializing. (Do not name other children here, but examples of bad social situations can be given in general terms). Homework frustration or unwillingness to do homework should be mentioned.
Teachers can help to fill out the form. If the form makes you nervous or skeptical a letter or an email can also be used to add parental concerns to the IEP document. Instead of issuing the form when the student already has an IEP the teacher may just ask for parental input. If you feel comfortable giving input verbally you can do that, but make sure all of the concerns are added to the final draft of the IEP. It is encouraged that input is given in any type of written form so that all the concerns are added and there are no communication issues in getting the concerns in the IEP or in the initial IEP.
See this chance to add parental concerns to the IEP as an opportunity to express your concerns about your child at school not a nuisance or a chance to confront others (there are other ways to do so!).