Team members of the Topic Study Group 23: Mathematical knowledge for teaching at primary level. In the 12th International Congress on Mathematics Education (ICME12), July 8-15, COEX, Seoul, Korea.
1 2012 International program committees, local program committees of PME36, July 18-23, Taipei, Taiwan.
1 2010 Chief-organizer of Topic Study Group 2: Assessment for Excellence. In 5th Asia Regional Conference on Mathematics Education, August 18-22, Tokyo, Japan.
1 2008 Speaker of Regular lecture for the 11th International Congress of Mathematics Education (ICME-11) in Monterrey, Mexico, July6-13.


International program committees of Psychology of Mathematics Education(PME29-PME33)
1 2004 Co-organizer of Discussion Group 6: The Education Mathematics Teacher. In 10th International Congress on Mathematics Education (ICME-10). July 4-11, Denmark: Copenhagen




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National Hsinchu University of Education,

521,Nan-Dah Road, Hsinchu city 30033 Taiwan, R.O.C