If necessary, contact Wright's Law or another advocacy group. It may take court action to get your district to comply. Under federal and state law, your child is entitled to a free and appropriate education. In order for a parent to become a powerful advocate for the appropriate education of their child, they must educate themselves and be able to articulate and present the evidence to others. You also have a right to know where your child stands academically.
Special education is a remedial program.
It is not meant to be a life-long sentence. Parents need an objective indication of their child's progress from year to year. If your child has not made adequate progress, you will need to insist on some changes. One requirement is to insure the same reliable standardized test is administered every year. Unfortunately, schools often discourage parents from having their special needs child tested, so no objective measure of accountability is in place.