“…PD and teacher-related outcomes: Prior research suggests that teacher PD can improve teacher-related outcomes, albeit with some mixed results. There is evidence that training programs can develop teachers' pedagogical content knowledge, including their ability to address students' content-related misconceptions (Morge, Toczek, and Chakroun, 2010) and implement inquiry-based practices (Buczynski and Hansen, 2010). However, Jacob, Hill, and Corey, 2017, observed little effect on teachers' mathematical content knowledge despite the intervention's extensive overlap with characteristics of effective PD (having a content focus, permitting teacher collaboration, and encouraging teacher ownership of the work).…”