This document discusses best practices for assessing children with autism spectrum disorders. It aims to increase knowledge of effective assessment tools and methods for ASD, develop understanding of multidisciplinary assessment teams and the importance of parent-school relationships. The document provides background on ASD as a spectrum disorder with a range of support needs. It reviews statistics on the increasing rates of ASD diagnosis and potential factors. Neurological differences associated with ASD and their social-emotional implications are examined. Criteria for diagnosing ASD according to the DSM-IV and educators' role in determining special education eligibility are also reviewed.