Research And Applications Of Tacit Knowledge Supported Knowledge Expression Model In Network Teaching

As a new teaching form,the network teaching has become a hot topic in the field of education.However,the current network teaching mainly focuses on the research on application support technology,rather than deeply consideration of the essence of teaching.According to the constructivist learning theory,the teaching of schema and its construction strategy is the core of teaching,and the key to improve students' cognitive ability.The teaching-oriented knowledge organization is the foundation of teaching design,but most of the current knowledge expression methods remain in explicit knowledge and semantic level.How to convey the schema construction and construction strategy in knowledge organization is the key problem in network teaching.In view of the problems of the mismatch between the way of knowledge expression and the essential goal of teaching in network-teaching applications,based on the related research of cognitive theory,this thesis first analyzes the inner relationship between schema constructive method and tacit knowledge.Next the theory of constructivism is used as the theoretical guidance to improve the knowledge construction method in the knowledge map,it abstracts and externalizes the tacit knowledge into the pattern knowledge and brings it into the knowledge modeling.Based on this,this thesis then puts forward a new knowledge expression model supporting teaching of tacit knowledge and tacit knowledge construction method,gives related concepts and mathematical description.A case of knowledge expression model and its analysis are also given in the following.Finally,based on the knowledge expression model,this thesis gives the detailed design and implementation of a knowledge base and a network teaching prototype system based on the knowledge base.Through some experiments in the teaching system,the feasibility and rationality of the knowledge expression model proposed in this thesis are basically verified.