Abstract: The purpose of this presentation is to explore the potential value of online video case discussions among preservice and inservice teachers, and the video case teacher for the professional development of teachers. A total of 26 preservice and inservice mathematics teachers from various backgrounds and a veteran teacher who appeared on the video case participated in the study. Using content analysis techniques, the presentation provides a thematic analysis of the teacher discourse and makes an assessment of the overall effectiveness of the online forum set up for the professional development of teachers. The results indicated that participant teachers were able to make theory-practice connections by articulating specific frameworks that guided the study. The inclusion of the video case teacher has been beneficial for the other teachers in several ways.