This document discusses factors that influence teachers' perceptions of professional development programs and the impact of school learning culture on teacher professional learning. It addresses three key issues: 1) factors that influence how teachers view PD programs, including characteristics of the programs and individual teachers, 2) improving evaluation of PD programs so they can effectively support development, and 3) how school learning culture, such as collaboration and feedback, affects teacher learning. The document emphasizes that evaluation of PD programs should collect data on teaching and learning to both improve programs and assess their impact on instruction and student achievement.