While research has shown that video can be an effective tool in the professional learning of teachers in industrialized countries, it is unknown whether this is also true for other countries with distinctive cultural, political, and historical contexts, such as Cambodia. This paper presents results from a study which examined the effectiveness of using video to introduce student-centered teaching to teachers in Cambodia. The training consisted of collaboratively watching and discussing videos of teaching practices. A 2x2 design was used, varying group conditions (team versus pair) and relevance of the material (model video versus action video). The findings indicated that although it was not possible to determine if there had been changes in teacher behavior, using video had led to an increase in teachers' perceived knowledge of student-centered teaching, especially for the team and the model video conditions.