Definition:In accordance to the IDEA autism is a developmental disability that significantly affects a student's verbal and nonverbal communication, social interaction, and education performance. Under the IDEA a student cannot be autistic if they have are adversely effected by a primary emotional disturbance. Under the definition found in Diagnostic and Statistical Manual of Mental Disorders, they define the Autism Spectrum as a group of five disorders that vary in severity. Those five disorders are Autistic Disorder, Rett's Disorder, Childhood Disintegrative Disorder, Ausperger's Disorde…