Ontology-Based Description of Teaching Knowledge with Increment Feedback Function

The main task of the educational technology courses is to explore educational knowledge description, automating instructional design, educational communication, intelligent assessment technology and educational system simulation technology etc. So how to express the knowledge involved in the teaching process becomes the premise for the study of the issues mentioned above. However, problems do exist with the traditional knowledge expression methods in the whole process of expressing, transmission and sharing of knowledge. First, it is hard to avoid ambiguity in understanding the transmitted and shared knowledge; second, in the context of mass atomicity knowledge, there exists the probability of combinatorial explosion in expressing and inducting the knowledge. To realize scientific expression of the teaching knowledge, this article takes ontology tool as the teaching knowledge describing technique in a bid to enhance the capability of expressing and sharing the teaching knowledge. At the same time, a teaching knowledge ontology building method with an increment feedback function is put forward for the controllability and guidance of the building process.