1. Cao Tao, whose real name is Hai Mathematics, is a math teacher who became popular in various short video platforms in Chinese mainland. He is loved by many netizens for his humorous teaching style and affordable price. He can not only speak ordinary high school mathematics knowledge, but also be good at digging interesting and practical mathematical thinking.

2. Zhao Yan, whose real name is Zhao Yan, is a well-known mathematical scientist and network celebrity in China. Zhao Xun holds a doctorate from Jiangsu University. He has made many achievements in the field of mathematics and attracted the attention of many academic circles and media. Zhao Yan's teaching style is rigorous and pragmatic. He can explain mathematics knowledge in simple terms and make up for students' fear of theory and abstraction.