Her interests include students' understanding of geometric proof and secondary teacher development. She is currently a Co-Principal Investigator (along with Sharon Soucy McCrone) for a three-year, NSF-funded research project entitled, An Investigation of Pedagogical Factors Influencing Students' Understanding of Geometric Proof. Recent publications include, Calculus Students' Ability to Solve Geometric Related-Rates Problems and Performance-Based Assessment of Secondary Mathematics Student Teachers (co-authored with Roger Day). She is also co-authoring a book chapter with John Dossey and Chancey O. Jones focused on an analysis of TIMSS (Third International Mathematics and Science Study) data. This chapter will be entitled "Using Viking-Codes for Analyzing Student Constructed Responses in Mathematics."