Teaching by case discussion is a commonly used method in medical education, yet few medical educators receive formal training in this teaching technique. The phases and specific techniques used in case discussion are reviewed. A faculty development seminar on this method is described as well as the evaluation of its effectiveness measuring: participant satisfaction and stated learning outcomes, perceived changes in teaching behaviours and perceived impact on learners. Although the results did not achieve statistical significance, trends did indicate a change in teaching behaviours after this intervention.