The present study used a delayed multiple-baseline across-participants design to analyze the effects of coaching on special education teachers’ implementation of function-based interventions with students with severe disabilities. This study also examined the extent to which teachers could generalize function-based interventions to different situations. In addition, this study examined the effects of function-based interventions on students’ problem and replacement behaviors. Results indicated a functional relationship between coaching and an increase in teacher fidelity scores. Teachers generalized the strategies to other situations with the target students.