< Educational background>
~ 1987 Doctor of Philosophy, University of Minnesota Graduate School of Educational Psychology
~ 1980 Master of Education, Seoul National University
~ 1971 Bachelor of Education, Seoul National University

< Professional Experience>
2003.11 ~ 2009.09 3rd Chairman of the Youth Violence Prevention Foundation
40th Minister of Education
2012.12 ~ 2014.06 19th Seoul Metropolitan Office of Education Superintendent of Education
Seoul National University Emeritus Professor

< Awards and Honours>
2003 1st Class order of service Merit
1998 National Medal of Merit Camellia Medal"