“初中历史、地理、生物网络教学设计实践探索”是中央电化教育馆“十五”教育技术研究重点课题“网络环境下的教学设计研究”的子课题,于2002年9月启动,经过三年多的实践和研究,取得了显著成效。一、研究背景当今社会已进入信息时代,以计算机技术、微电子技术和互联网为代表的 “Junior High School History, Geography, Biology Network Teaching Design and Practice Exploration” is a sub-topic of “Research on Teaching Design in the Network Environment”, a key project of “10th Five-Year” educational technology research of the Central Electrification Education Center. It started in September 2002 and after three years More practice and research have achieved remarkable results. First, the research background Today’s society has entered the information age, represented by computer technology, microelectronics and the Internet