Abstract
The Department of Mechanical Engineering of Yonago National College of Technology has recent-ly introduced a Problem-Based-Learning (PBL) program for the first-grade students. Its purpose is to enhance the students' interest to the mechanical engineering and to develop the students' learn-ing ability and creativity. We think the PBL program has achieved educational effects expected, but we also find some problems in the management of the class. Following to the analysis of the problems, we did some attempts to gain more educational effects. Efficiency of students' group work has been improved by deciding the number of student in a group according to the content of task. We also considered the longterm educational effects that PBL would have brought.
