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This study has developed Web-based, automated lesson planner system for teachers to make out and make use of lesson plans using ICT (information communication technology). First, the Web-based lesson planner system has been developed to enable teachers to make and use lesson plans on the web. Second, the database of the electronic lesson planner system has been designed and established according to Korean curriculum and form of teaching-learning lesson plan using ICT. Third, the system embodied making out a lesson plan easily and operating all ICT materials together. Last, the system was applied to the real elementary school fields and the efficiency and improvements were analyzed. This lesson planner system made a database of all ICT materials and lesson plans, so that it can manage and control all lesson plans systematically. Also, the lesson plans and ICT materials are connected together, so the database can be a dynamic content storage. The construction of this system established maximization of share, use and storage of teaching-learning lesson plans. It will be popularized in real education fields and made a contribution to the school informatization.

The mobile agent is receiving the attention as a new technique to retrieve and to share the distributed contents on Web-based educational systems. Retrieval using a mobile agent uses the method that delivers the agent to accomplish a search in the direct server. This study proposed the model of a retrieval system that shares and searches the distributed educational contents of the bulletin board and newsgroup by using the mobile agent. In order to evaluate the efficiencies of the system that is proposed, we did the comparison test on the search model of the existing and proposing system. By a test result, we confirmed network traffic of the proposed system are diminished. Moreover we gave proof of the fact that the optimum search time of the mobile agent-based system is shortened.