Practice of virtual experiment in level-based experiment teaching mode

The experimental teaching,as an important part of teaching system in colleges and universities,plays an irreplaceable role to cultivate students' innovation consciousness,practical ability,problem analysis and problem solving ability. With the development of computer simulation and virtual reality,Virtual Experiment appeared.As a new experiment method,the virtual experiment is out of the limits of time and space,and it has superiority that the traditional experiment doesn't have.This paper introduces a level-based experiment teaching mode,which is combined with the advantages of virtual experiment and physical experiment.This teaching mode has been found its application in the teaching of the digital circuit experiment and produced good results.Making full use of virtual technology and network technology,this teaching mode will achieve a wider range of resource sharing,and create a new situation of experimental teaching.