People's education edition mathematics. Cui Li is a lecturer in online mathematics of Yixin. The video course of mathematics uploaded by her on the education platform aims at explaining the mathematics published by the National People's Education Press. Cui Li has been invited by Sina, Beijing Morning Post, Beijing Evening News, Xinbao, Youth Daily and other media to interpret the mathematics in the senior high school entrance examination, advocating that everyone can learn mathematics well, be good at developing students' potential and pay attention to the cultivation of mathematical thinking ability.