1995- 1998, executive member of the international commission on mathematics education. This is the first time for China people to enter the world's leading mathematics education institutions.
He has been engaged in teaching mathematical analysis and function theory for a long time. He has written more than 0 kinds of books 10, such as Modern Mathematics and Middle School Mathematics, Guide to Mathematics Education and Research, and Draft Mathematics Methodology.
Engaged in the study of modern mathematics history after teaching. He has books such as History of Mathematics in the 20th Century.
At present, he is a member of the Steering Committee for Teaching Reform of Teachers College of the Ministry of Education and the head of the national standard research group of senior high school mathematics curriculum. 1995 won the National Excellent Teacher Medal. 1997 won the first prize of National Teacher Award (Ceng Xianzi Prize).
The field of mathematical research is functional analysis. He has published theoretical papers on operator spectrum in China Science, Journal of Mathematics and Yearbook of Mathematics, including the monograph Joint Spectrum of Operator Groups.
Some papers (in English) have been published in magazines, such as Mathematical Intelligence.