Dilemmas, Countermeasures and Enlightenment of Large-scale real-time online teaching in the Context of Epidemic situation

The outbreak of COVID-19 in 2020 triggered a large-scale real-time online teaching, which exposed many teaching problems. In order to solve these problems, this paper studies the dilemmas, causes and countermeasures of large-scale real-time online teaching, and obtains the enlightenment of improving teaching quality. Firstly, the background and characteristics of large-scale real-time online teaching are described, combining with sampling survey, through the data analysis model to analyze the user data of the mainstream online teaching platforms in this paper. From the aspects of teachers, students and technology, this paper analyzes the difficulties and causes of teaching, and puts forward some teaching countermeasures, such as strengthening the application of information technology, changing the teaching content and design, and strengthening the construction of teaching interactive scenes. Finally, this article summarizes the enlightenment of large-scale real-time online teaching to the development of modern information-based teaching.