The National Center for Special Education Research (NCSER) supports research that contributes to the identification of effective strategies for improving the performance of current teachers and other instructional personnel, and related services providers in ways that increase student learning and achievement, social and behavioral skills, and high school transition outcomes for students with or at risk for disabilities. This report presents highlights of NCSER-funded research that: (1) targets teacher data-based decision-making; (2) content area professional development in language, reading and math; (3) professional development for early childhood teachers; (4) professional development for teachers of children with autism spectrum disorders; and (5) tools for evaluating special education teachers. [This report was summarized by Robert Ochsendorf and Katherine Taylor.]