Formative assessment is one of the most effective tools that teachers use to promote student learning, and watching yourself teach on video is one of the most effective ways to improve your teaching. As part of a project for the Michigan Department of Education, we worked with eight teachers in Michigan who are using videos of their teaching to improve their use of formative assessment practices. In this article, we describe one of the rubrics we used and highlight some of the improvements that the teachers in our project discovered for themselves through this process. We also discuss how the learning teams we worked with are moving toward facilitating their own enhanced professional learning using classroom observations and the rubrics to provide actionable feedback to