Design a general-purpose network teaching platform based on blended learning theory

Considering classroom teaching and online learning as a whole, the activities of teachers and students in the network teaching platform are designed, based on blended learning theory, activity theory and constructivism learning theory. The network teaching platform emphasizes activity and task as its cores, ensuring learning resources and building a learning community. Based on activity theory model, this paper presents a model of learning activity, designs learner activity index and teacher activity index in the platform.