Experiencing instructive activities of Performing Arts is able to help students to consider and criticize the issues concerned by them. This essay takes the event in The King of Ajatasatru to approach Case Method, in which we linked up with Image Theatre to let the students who attended the drama workshop in the summer camp learn how to give and argue their opinions on the issue that Ajatasatru imprisoned his father because he was aflame at the provocation given by his friend. In order to let the high school students obtain a clear understanding on their peers’ “provocation,” we used Ajatasatru’s polar attitudes from “uncomplaining” to “complaining” as the V-effect to estrange the students who would be more objective to face the case occurred in the fifth B.C. and to judge why Ajatasatru resolved his problem by negative way. The result of Ajatasatru’s action was the discussion point in the class, and the participants in the dramatic activities had the right to change his action by using their preconceived opinions, to discuss the issue with others in a group, and to appreciate the representations each other. Hopefully, they not only criticize dialectically the main reason of Ajatasatru’s “complaining,” but also did focus back on their concerned and similar problems with peers’ provocation. Their fostered positive personality were disclosed in their questionnaires in the end of the class. Therefore, this pedagogical method may be useful for teachers in the classroom.