My daughter was diagnosed in March with PDD-NOS.
Hello and welcome.
If she is provided with services which are appropriate to her needs, then you needn't ask for anything. Very often you won't know if a program is appropriate until she has been in it for awhile, and then you may have to do some tweaking based on her progress.
If you feel the program is not meeting (/will not meet) her needs, then you need to ask for more evaluations or more services (examples might include an aide to assist her in the classroom or occupational therapy for sensory issues). The school cannot refuse needed services with excuses like "we don't do that here". If it is needed, then they must provide it. The difficulty is proving the need. If you have outside evaluations by PhDs or medical doctors, they will help, because a PhD will trump a school psychologist. It could be a long battle. We have an educational plans board here on iVillage which will be able to assist you better than I can.
My son is not educationally classified as Autism, but he is doing well with his current IEP. As it's not broken, we are not fixing it.
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