The Research of Learning Content Layer Graph

The idea of learning content layer graph among the network education learning space is presented, which figures out the hierarchy and usher relation of learning content. Analysing the logic structure relation built in the concepts of learning content, we can find out that the learning content layer graph corresponds to the AND/OR tree through adding virtual nodes or edges. The goal of learning content should be achieved, so the solution tree of AND/OR tree is also existed. The obtained solution tree reduces the problem solving complexity. Based on the learning content layer graph and person´s knowledge level, the optimal teaching plan can be constituted. The implementation of optimal teaching plan incarnates the idea of teaching students in accordance of their aptitude of modern network education