Autism is a developmental disability that affects communication and social interaction, with prevalence estimated at 1 in 110 births. It is characterized by difficulties with social interaction and communication, as well as repetitive behaviors. While there is no single known cause, factors such as genetics, neurological issues, and environment are theorized to play a role. In the classroom, students with autism benefit from a structured environment, positive reinforcement, and instruction incorporated into natural settings with peers to support language and social skills development.