Online Mathematics Teaching in China: A Case Study in High Schools (2020-2025)

Online teaching has the advantages of being able to overcome time and space constraints as well as sharing resources, which have been studied by a number of scholars at present. However, there is currently no literature that summarizes and organizes this research. This paper uses content analysis method and comparative research method to review and organize relevant literature on online mathematics teaching in high schools, drawing the following conclusions: (1) Current research on online mathematics teaching in high schools mainly focuses on two aspects: strategies to improve the effectiveness of online teaching and the advantages and disadvantages of online teaching. (2) The current research on online mathematics teaching in high schools is rich in content, covering teaching strategies, teaching effectiveness, advantages and disadvantages, and other aspects, but the research lacks systematicity and depth. Most studies remain at the theoretical level, lacking empirical support and long-term follow-up research. (3) Existing research addresses the overall situation of online mathematics teaching in high schools broadly, without in-depth analysis of specific aspects.