协同学习环境中的嵌套式知识空间模型及实现

Nested knowledge Space Model and Implementation for the Collaborative Learning Environment

针对传统协同学习系统中普遍存在着学习材料组织混乱、学习工具隔离使用和感知处理困难等问题,本文提出了嵌套式知识空间模型,该模型包含知识域、知识域之间的包含关系、相关关系、拟序关系和并行关系以及知识空间等概念。根据此模型建立的协同学习系统中,可将学习材料及学习工具和学生的学习过程有机的整合在一起,提高学生的学习效果。另外本文还给出了描述此模型的具体数据结构和相关算法,并开发了相应的工具给教师进行模型管理。

For the problem of data' s mismanagement, separated usage of study tools and hard for awareness processing widely existing in the traditional collaborative learning system, the nested knowledge space model is presented in this paper, which includes the concepts of knowledge domain, inclusion relation, correlation relation, quasi-order relation and parallel relation among the knowledge domain,and knowledge space etc. In the collaborative learning system based on this model,the learning materials and study tools are integrated compactly with the user' s learning process and help the learner studying. In addition the data structure and algorithm for this model are described in this article ,the tool developed for the teachers to manage the model is introduced in the end of this paper.