Students with disabilities consistently underperform on academic achievement tests. In part, this is due to teachers being underprepared to provide the evidence-based instruction needed to help students with disabilities succeed. Historically, professional development (PD) has been provided to educators yielding disappointing results. In this chapter, what is known about the components of effective PD and how to evaluate a PD program will be discussed. In particular, the role of coaching and the use of technology in PD models will be explored. The next steps in improving PD will be discussed. [For the complete volume, "The Next Big Thing in Learning and Behavioral Disabilities. Advances in Learning and Behavioral Disabilities. Volume 31," see ED614920.]