Discussion, as an important part of online learning, has been widely used in teaching to support communication and information sharing among learners. However, there are some problems in online discussion, such as poor topic design, students' low discussion depth and enthusiasm. S-P table analysis was applied to online discussion analysis. Based on the 186 posting records of 35 students under 9 topics on Wolearn platform, the quality of the topics and the characteristics of students were analyzed from the aspects of full answer rate, warning coefficient, difference coefficient, stability coeff...
