1. Teacher Zhang Yu is a very capable teacher. She is frustrated and powerful when giving lectures, pays attention to details, pays attention to practical results and pays attention to guiding students.

2. Zhang Yu speaks very well about some concepts and abstract problems of postgraduate mathematics, and explains many complicated problems in simple terms, which is also the most attractive place of Zhang Yu's course.

3. But Zhang Yu's course will be shorter, because there are few exercises in class, and it won't take you a lot of practice. Understanding a theorem, understanding it and using it are two different things

4. If you understand the principle and don't help a certain number of exercises to consolidate your understanding immediately, you will forget it the next day, just like not learning. Many students are like this, their consciousness is not high, they don't practice enough after class, and they don't brush enough questions, which leads to poor learning effect.

Brief introduction of Zhang Yu:

1, Zhang Yu, former online teacher of New Oriental, Ph.D., a well-known expert in mathematics counseling for postgraduate entrance examination in China, and "the backbone teacher of national excellent curriculum construction" by the Ministry of Education.

2. The author of the national bestseller Lecture on Advanced Mathematics 18, Analysis of Classical Questions of Postgraduate Entrance Examination Mathematics 1000, and one of the editors of the National Unified Entrance Examination Reference Book for Postgraduates (Outline Analysis) by Higher Education Press.

3. Initiate the "project-based teaching method", which gives a brand-new interpretation of the knowledge structure and system of postgraduate mathematics, and has a strong grasp and prediction ability on the proposition and review ideas of postgraduate mathematics, so that students can get high marks easily and efficiently.

4. Invited expert of 2007 Slovenian Global Sustainable Development Conference (delivered 15-minute keynote speech).