Mathematics teachers develop understandings about instruction across multiple settings, such as classrooms, workshops, and professional learning communities. When teacher teams collaborate, their prior teaching and learning experiences meaningfully inform their sensemaking. However, current research does not explicitly link teacher conversations…

This study examines online messages in a discussion forum that a group of K-12 history teachers used to discuss curriculum implementations as part of their professional development. It has 3 main research foci. First, it focuses on identifying the types of assistances provided to the teachers in an online forum. Second, it examines teachers'…