The Boston College (BC) team led the development of both teacher and facilitator professional learning materials for Middle School. This included observing and videorecording classroom enactments to capture examples of key instructional moments for the professional learning experiences and designing the in-person professional development. In addition, the team supported implementing the professional learning for the field test states. This included leading the facilitator professional learning, observing and examining the data from the in-person professional development, and revising the professional learning experiences based on this data for public release.