I have been working at Nashua Schools (More than 10 years) Pros Large District so there are more opportunities for teachers to take on projects than smaller districts.
And many people with Autism do suffer from a form of Mental Retardation. For some reason I believe people feel better the more they can separate the two conditions and believe somehow it is better to have Autism non related to mental retardation.
Intellectual disability. Intellectual disability (ID) is the current term used to describe what in the United Kingdom has been known as learning disability and in the United States as mental retardation. From: Brocklehurst's Textbook of Geriatric Medicine and Gerontology (Seventh Edition), 2010. Related terms: Down syndrome; Epilepsy; Epileptic seizure