A Development of Retrieval system and Classification Categolies of classroom Activities Recorded Videotapes

课堂活动录像由日本教育学院和教育大学收集和控制。一些大学和学院将这些录像带作为图书馆系统地保存和管理。这些录像带是教育临床和实践研究的重要资料，特别是教学设计与分析、方法课程和教学实践改进研究的宝贵资源。本研究分为以下几个主题。1)分类类别框架；因此，这些录像带基本上都附有“计划表”，框架是(a)教学的基本项目(b)课堂活动的特点(c)录像带的种类。2)检索系统由基本项目和两个操作模块构成。3)讨论了本系统的评价和改进要点（灵活性、可用性、可扩展性）。

Classroom activity recorded videotapes are gathered and controled by the faculty of education and University of Education in Japan. Some university and the faculty are preserving and controling these videotapes systemiticaly as the library.These videotapes are important materials for the clinical and practical research on education,especially voluable resources for improvement research of instructional design and analysis,method courses and teaching practices. This research was accomplished as following themes.1) Framework of classification categories;Basically the videotapes have appeded "Planning Sheet" , Framework are (a)basic item of Instraction(b)characteristics of classroom activity(c)kinds of videotapes, therefore. 2) Retrieval system is constructed with the Basic items and two operation modules. 3) Discussed on assessment and improvement points(flexibitity,availability,extention) of this system.