System Development for Distant Collaborative Learning by Distributed Web Portfolio and Instructional Practices

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Learning processes of students with portfolio were considered based on cognitive science. A digital portfolio as educational functions is added to WWW system. This digital portfolio system enables distant and cooperative learning that learners can communicate and share their knowledge. Learning processes including this system were planned. Based on these plan, a Web-DB portfolio system was developed that accumulates following three types of information: results of learning activities , portfolio, and communication. This system was used in school practices. The results show the followings.1. System interface is adjusted for elementary and junior high school students respectively, for them to reflect easier along assessment viewpoint in the process of long term. For accelerate learners' communication, some words were prepared respectively.2. In a elementary school, a 30-hour course on welfare was planned and put into practice. In a junior high school, a course was planned and put into in the hour of science studies.3. Various findings were obtained from these practices : Students improved portfolio repeatedly and the activities were effective for them. Bookmark and reference buttons were effective for students. BBS system worked for them to get assessment messages from others. Face to face discussion was gradually shifted to on-network discussion. Starting word and connecting word buttons were suitable for communication between students as well as to/from teachers. Moreover junior high school students evaluated presenting various and different thoughts on network discussion.