Objectives: Integration of children's individualized behavioral learning objectives into ongoing activities, routines, and transitions of preschool classrooms has been a recommended practice for many years in the field of early childhood special education. This study examined the effectiveness of embedded instruction in teaching three functional skills to a child with autism enrolled in a preschool classroom specifically designed for children with autism. Methods: A multiple probe design was used to evaluate the effects of embedded instruction on skill acquisition and maintenance. Results: Results showed that the child learned all three target behaviors and maintained high levels of independent performance during follow-up sessions conducted 1-8 weeks after the child reached criterion level of performance for a behavior. Moreover, preschool teachers who observed the intervention sessions reported that the intervention was appropriate, easy to use, and beneficial to the participating child. Conclusion: These findings along with the findings of previous research suggest that embedded instruction may offer viable and effective ways to provide intentional, systematic, and individualized instruction and interventions to young children with autism within ongoing activities, routines, and transitions of early childhood settings. Implications for practice and future research are discussed.