Born in August, 1947, a native of Shahe City, Hebei Province, Han nationality. Graduated from Henan Normal University. He is currently the deputy head of the primary school group of the teaching and research section of Henan Provincial Education Commission. I have been teaching in primary schools since 197 1 and working as a math teacher in middle schools since 1975. /kloc-in the autumn of 0/979, he began to engage in the teaching and research of primary school mathematics textbooks.

In the 1990s, the mathematics textbooks for five-year primary schools with nine-year compulsory education in Henan Province were edited by the National Primary and Secondary School Textbooks Examination and Approval Committee and passed on 1998 (this set of textbooks was revised according to the changes in the primary school mathematics syllabus in 2000 and passed by the National Primary and Secondary School Textbooks Examination and Approval Committee).

200 1 Editor-in-chief of the mathematics textbook for the transition from five-year system to six-year system in primary schools in Henan Province, which was approved by the textbook review committee of primary and secondary schools in Henan Province.

Main contribution

1, Research on the reform of primary school teaching curriculum objectives

The evolution and development of primary school mathematics teaching objectives in the past 50 years: clarifying the teaching guiding ideology and pushing forward the teaching reform with all one's strength —— Interpretation of "Nine-year compulsory education full-time primary school mathematics syllabus (Trial)": Changing the educational concept and promoting quality education —— New features of "Nine-year compulsory education full-time primary school mathematics syllabus (Trial)".

The idea and goal of Mathematics Curriculum Standard for Full-time Compulsory Education (Experimental Draft): The realization of the goal of "knowledge and skills" from the teaching of "number and calculation"; On the realization of the goal of "process and method" from "solving problems": the cultivation of emotional attitude and values.

2. Research and practice on the content reform of primary school textbooks.

The evolution from "arithmetic" to "mathematics"; The changing trend of the teaching content of number and calculation: from "applying problems" to "solving problems"; The expansion of "basic knowledge of geometry"; "Algebra" enters the primary school curriculum; Increase and strengthen "statistical knowledge"; Brand-new content-"Practice and comprehensive application".