The work aimed to increase the interaction and cooperation of the on-line learning by enhancing the re-utilization of network resources. The paper analyzed the network teaching requirement of the online classroom learner, proposed the hierarchical modular design on the teaching objectives segmentation, and designed the standard online classroom modules to match the resources of the network learning situations, which were full of humanistic care with sharing and implementing the disorderly stack of resources towards interactive situation. This design suggested that the teaching strategies of network classroom should pay more attention on the reservation enrolling management, and the interest problem-based learning with the feeding back, the dynamic regulation for the teaching organization also should be stressed, which would promote the online classroom on network resources to be efficiently reused.