1,: Teacher Li is deeply loved by candidates for her profound mathematical skills and rich teaching experience. His course content is clear and focused, which can help students quickly master the core knowledge points and problem-solving skills of postgraduate mathematics.

2. Zhang Yu: Teacher Zhang's teaching style is humorous, and he is good at simplifying complex math problems and making them easy for students to understand. His course covers all the important knowledge points of postgraduate mathematics, focusing on cultivating students' mathematical thinking and problem-solving ability.

3. Tang Jiafeng: Teacher Tang is famous for her rigorous teaching attitude and solid math skills. His course content is detailed, focusing on the consolidation of basic knowledge and the training of problem-solving methods. His curriculum style is more traditional, suitable for those students who like to take it step by step and slowly.