Self-study is difficult. If you need to register for a course, you can look at the corresponding education postgraduate courses promoted online. Xu Ying's tutorial class is used by many students, and there are also many irrelevant comments. Candidates are advised to find a suitable course in order to be responsible for their own postgraduate entrance examination.

333 Educational Synthesis is actually four courses, namely, educational principles, educational history of China, educational history of foreign countries and educational psychology, followed by recommended textbooks.