Abstract
This paper describes a method for understanding a student's attitude using chat message in a role-play exercises. In order to improve educational effectiveness of role-play training the results of analyzing behavioral records of each student gathered while role-play is going on should be reported to students in real time. This research proposes a method for categorizing sentences extracted from chat messages exchanged through chat session to understand a students's learning behavior. The sentences are categorized into four types: a sentence as a role-player, type "R"; a sentence about lesson or practice, type "L"; a sentence about manipulation or the system, type "M"; other messages that do not fall in the above categories. The intent of speech in the role-play training was examined by the professor while role-play is running. Student's attitude toward a role-play exercise could be understood.
