1, basic course: Tang Jiafeng's basic course video is comprehensive, covering almost all the basic knowledge of mathematics for postgraduate entrance examination, and it is very detailed, which is suitable for almost everyone.

2. Intensive classes: Tang Jiafeng's intensive classes are more difficult than the basic classes. Teacher Tang will talk about some difficult problems and changes in topics, and introduce some math skills.

3. Full-course class: Teacher Tang Jiafeng's full-course class is a transition from basic class to intensive class, with comprehensive content.

4. Special course: Teacher Tang Jiafeng's special course mainly explains some difficult and key issues, which is suitable for surprise review before the postgraduate entrance examination.

5. In addition, Mr. Tang Jiafeng also has zero basic classes, advanced classes and punching classes.