抄録
This paper examines whether or not students' reflections correspond to the aims of the course through hierarchical cluster analysis using the Term-Document matrix, which contains students' reflections in the form of free descriptions. In the author's interpretation of the analysis, students understood the diversity of opinions and evaluations of the discussions that they participated in. On the other hand, the author examined that the implicit instruction of the free description and the lack of sharing the students' reflections prevented the students from gaining an awareness of the cooperative relationship among the discussion participants.
