Autism spectrum disorder (ASD) has become the fastest growing disability in the United States, with current prevalence rates estimated at as many as 1 in 110 children (CDC, 2010). This increase in the number of students identified with ASD has significant implications for public schools. The most popular research-based educational practices for teaching this population, explored in this article, include applied behavior analysis (ABA); the Developmental, Individual-Difference, Relationship-Based model (DIR/Floortime); the Picture Exchange Communication System (PECS); social stories; and Treatment and Education of Autistic and Communication related handicapped CHildren (TEACCH). (Contains 1 table.)