This research started with the topic of educational technology of Zhihu. In order to explore other hot topics associated with it and the hotspots and trends in the parent topics of the annual questions, this research used the method of co-word analysis, social network analysis. Through digging topics network structure to understand the relationship between topics topics location and roles in the network. This research found that there were two major hot topics under educational technology topic. One was a hot spot of other professional topics closely linked to educational technology. The secon...
