- Professor, Faculty of Education, 丁香园AV (2017鈥損resent)
- Associate Dean, Graduate Studies, Faculty of Education, 丁香园AV (2017鈥�2018)
- Associate Dean, Graduate Studies Office, 丁香园AV (2011鈥�2017)
- Associate Professor, Faculty of Education, 丁香园AV (2010鈥�2017)
- Associate Dean, Faculty of Education, 丁香园AV (2006鈥�2007)
- Assistant Professor, Faculty of Education, 丁香园AV (2004鈥�2010)
- Associate Member, Department of Mathematics, 丁香园AV (2004鈥損resent)
- Sessional Instructor, Faculty of Education and Department of Mathematics (2001鈥�2004)
- High School Mathematics/Physics Teacher (8鈥�12), Lord Byng Secondary (1994鈥�1999)