Hi, all! I'm new to this forum and am looking to get some advice for my classroom. I'm a full-time special education teacher and work with three paraprofessionals in my classroom. I moved to my current district this past August and have been working with my three aides since that time. I have one paraprofessional who has been undermining my authority as classroom teacher. She constantly questions my decisions and will even try to change my lesson plans when I am not there. She bullies the other two aides in my classroom. Both my administrator and I have sat down and talked to her (on separate occasions) about the classroom expectations, she has not heeded the advice that has been given to her. As a former paraprofessional myself, I am disturbed that she would act like this. Is there any advice you can offer to how I can work more effectively with her? Please help!