DEVELOPING A PARTICIPATION-TYPE LEARNING ENVIRONMENT WITH MULTIMEDIA NETWORK LINK MECHANISM AND IMPROVING CLASSES

关于课堂超媒体学习材料的编写，通过开发顺序、各种含义和格关系的连贯关系的方法，在动态链接机制的基础上形成了一个系统。该系统使教师能够构建多媒体网络学习环境，学习者可以在其中进行自己的学习活动，如收集信息、阅读信息、连接多个信息源、展示自己的作品以及相互交流。给出了超媒体学习素材的创作实例，探讨了网络上超媒体学习素材的动态链接机制。提出了利用CGI技术构建具有动态链接机制的WWW服务器的方法。在此基础上，在小学、初中和高中实施了社会科学和理科的多媒体网络课堂。以8个多媒体网络课堂为例，从认知科学和教学设计两个方面对这些例子进行了思考，结果表明，动态链接机制和创作方法实现了参与式学习环境，促进了学习者的探究活动，包括文化实践、认知实践和社会实践。最后，给出了超媒体教材的教学规划和开发过程，并对多媒体网络课堂的改进提出了建议。

About the authoring of hypermedia learning materials for classrooms, a system is formulated on the basis of dynamic link mechanism by developing a method with coherence relations additionally to the order, the various meanings and the case relations. This system enables teachers to construct the multimedia network leaning environment in which learners can take their own learning activities such as collecting information, reading them, making connections with several information sources, presenting their works and communicating with each other. Examples of authoring for hypermedia learning materials are also presented.Furthermore, the mechanism that dynamically links the hypermedia learning materials on networks is discussed. The method of constructing WWW-server with the dynamic link mechanism by applying CGI is proposed. This method can be applied to the internet.On the basis of above results, multimedia network classes in social studies and science were put into practice in elementary, junior high and senior high schools. Eight examples are taken to illustrate multimedia network classes.The consideration for these examples from the aspects of congnitive science and instructional design makes it clear that the dynamic linking mechanism and the authoring method realize the participation-type learning environment that promotes learners'inquiry activities consisting of cultural practice, congnitive practice and social practice. Finally, the procedure for instructional planning and development of hypermedia teaching materials is shown, and the improvement of multimedia network classes is proposed.