A well-known math tutor for postgraduate entrance examination in China, a "backbone teacher of national excellent course construction" by the Ministry of Education, the author of national best-selling lectures on advanced mathematics 18 and classic questions on the origin of postgraduate entrance examination 1000, one of the editors of the National Reference Book for Postgraduate Entrance Examination (Outline Analysis) by Higher Education Press, and a invited expert at the 2007 Slovenian Global Sustainable Development Conference (publication No.65430)

The "subject-source teaching method" was initiated, and the knowledge structure and system of postgraduate mathematics were completely interpreted. It has a strong ability to grasp and predict the propositions and review ideas of postgraduate mathematics, so that students can easily and efficiently win high marks.