Notice of RetractionResearch on Layered Learning in Network Environment

The article analyzes the collaborative learning in network from four aspects: problems determination, information gathering, information processing and role shifting. Carry our teaching design according to different characteristics and enable the different learners obtain the development and the enhancement in own cognition level. Collaborative Learning Network is a learning method that divides the work among the members of cooperative, teachers attach importance to cooperation and guidance, at the same time, more attention should be paid to the network different, which brings differently to the learner request and the understanding.