IEP is considered a legal contract if yor child is receiving services that is not on the IEP the school does not have to follow any guidelines for this unless its on the IEP. My child has been receiving one on one teacher aide support from the beginning of the year which was started by the Principal and not part of the IEP. I wanted the support to be on the IEP and have had nothing but trouble getting this applied . Furthermore the Principal has changed his written letter of what support is being given since giving it to me . I contacted CAUSE and Disabilty Connections for input on this matter. If I had not known what was going on, my child would be at the losing end of a great education. What else is the school doing that I or anyone else doesn't know?