摘要： 文章讨论了现代教学模式的特点和需求，提出了分布式教学环境的目标．在此基础上，设计了一个基于ＬＡＮ的支持多媒体信息实时传输的分布式教学环境模型，并描述了模型支持的授课演示、提问举手、分组讨论、资源播放、个人自学和管理、教学管理等功能模块和多媒体通道的建立方法．

关键词: 教学环境, 分布计算, 多媒体, 协议

Abstract: This paper discussed the characteristics and requirements of modern if aching model, puts forward the aim Of distributed teaching environment. After that. writer designed the teaching environment model, which supports the real time transmiting of multimedia information based on LAN. described the module function of teaching show. ashing and answer, grouped discussion, source playing, self-study and if aching management and the way to building a multimedia channel.