[[alternative]]Using Video to Promote Knowledge Sharing in the Online Teacher Community

[[abstract]]Under the era of knowledge innovation, on-line communities are needed to be composed of teachers who need to share knowledge more among the members. However, teachers belong to isolated groups, and their activities are limited to classrooms. They have less interaction between each other. Using the teachers’ actual instructional video, we expect to promote the teachers in the community to share knowledge more willingly and to participate in the on-line discussion. The research purposes of this paper are (1) to share video through members of teacher community in order to increase the willing of teachers to discuss on line. (2) to investigate the difference of joining teachers’ video before and after, and observes its knowledge and builds the difference constructed. (3) to probe into the factor influencing teachers’ willing of sharing knowledge. The target audiences of this research are 19 elementary school teachers who teach Chinese. The teachers’ video is collected by the voluntary teachers, and be put in the on-line community. Besides, using the Interaction Analysis Model(IAM) to code the articles of the discussion of the community members. The result shows that sharing vedio in the on-line teacher community could increase the teachers’ willing to discuess. However, the knowledge construction and the depth of discussion among teachers do not have obvious change. Besides, the factors influencing teachers’ willing of sharing knowledge are：(1) Teacher’s actual instructional video hold an attraction for other teachers, but teacher’s discussion strength does not match teacher’s ambitions. (2) To integrate physical and virtual community could facilitate the knowledge sharing. (3) In teacher’s opinion, the knowledge is not of great worth. (4) It is hard for teacher to externalize the tacit knowledge to explicit knowledge. (5) Teachers have the feelings of love and hate as sharing knowledge and getting feedbacks.