TEACHER EDUCATION

2017 – present: Professor, Teacher Development and Educational Studies, Oakland University, Rochester, MI

2009 – 2017: Associate Professor, Teacher Development and Educational Studies, Oakland University, Rochester, MI

2011 (Fall Semester): Visiting Professor (Sabbatical Leave), Seoul National University of Education, Seoul, Korea

2005 – 2009: Assistant Professor, Teacher Development and Education Studies, Oakland University, Rochester, MI

2004 – 2005: Assistant Professor, Early Childhood, Elementary, and Reading Education, Auburn University Montgomery, Montgomery, AL

PK – 6 SCHOOLS

2002 – 2003: Teacher, Shandiin Child Development Center, Albuquerque, NM

1999 – 2002: Math Teacher, The Susquehanna School, Binghamton, NY

1994 – 1997: Teacher, Seoul Samsung Elementary School, Seoul, Korea

1991 – 1994: Teacher, Seoul Shinwoo Elementary School, Seoul, Korea

OTHER

1999 – 2002: Research Assistant, Vygotakian Math in a U.S. Setting, State University of New York at Binghamton

2000 – 2001: Editorial Assistant, FOCUS on Learning Problems in Mathematics