A Visualization System of Discussion Structure in Case Method Learning

In the case method learning to develop learners’ problem-solving skills, an instructor plays a role on the facilitation of the discussion. As one of facilitators’ techniques to support learners’ discussion, visualization of discussion structure based on graph representation is often used. Automatic visualization of the discussion structure without the facilitator will contribute to expanding the learning opportunities for learners. So we propose a visualization system of the discussion structure by a graph representation with nodes and links through speech recognition of learners’ voice. The proposed method improves the conventional method to visualize discussion structure by considering the relation in the sequence of learners’ opinions.