Contact information

105A Willard Hall
School of Education
University of Delaware
Newark, DE 19716-2922


Ph.D. in Educational Psychology, 2004
Michigan State University, East Lansing, MI
B.S. in Mathematics Education, 1996
University of Arizona, Tucson, AZ


I am a member of these professional organizations:

Recent Highlights

Distinguished Faculty Award. In the spring of 2012, I was a co-recipient of the Distinguished Faculty Award in the School of Education at the University of Delaware. (If you followed the link to the article, click through on the right arrow below the first picture; our picture is the third one.)

Motivation Matters and Interest Counts. I co-wrote a book for mathematics teachers with Jim Middleton (Arizona State University), published by the National Council for Teachers of Mathematics in April, 2011.

Plenary speaker at the Fall 2012 PME-NA conference. I am looking forward to being a part of a plenary panel this fall about mathematics students' transitions across grades over time in school. This talk connects to my prior research as a member of the Mathematical Transitions Project research team. (Here is a representative publication.)


I am interested in the intersection between adolescent development and mathematics learning. In particular, I wonder about the ways in which students' experiences of social dimensions of the mathematics classroom intersect with opportunities to learn mathematics and students' beliefs about themselves as learners of mathematics. Also, I am curious about how to support prospective and novice teachers in their development of reflective thinking skills so that they can learn more effectively from their own practice. [more]


I teach undergraduate and graduate courses in mathematics education. In Fall 2012, I am teaching two undergraduate courses. MATH 252 is the second out of three mathematics content courses for prospective elementary school teachers that we offer at UD. It focuses on rational number concepts and operations as well as proportional reasoning. EDUC 336 is a methods course for prospective middle school mathematics teachers. [more]


Currently, I am the Ph.D. program coordinator for the School of Education at the University of Delaware. Also, about a year ago, I was elected to be a steering committee member for PME-NA (International Group for the Psychology of Mathematics Education - North American Chapter).



One of my hobbies is photography. I became interested in photography when I first moved away from my home state of Arizona in 1999. I wanted to capture what I saw and share it with my family and long distance friends. I had been using a point and shoot digital camera for years. I started using a DSLR camera in April, 2007. I took my first photography class at the Delaware College of Art and Design in the fall of 2007, and now I am able to use manual settings when I shoot! Since then, I have taken a course on photoshop for photographers at DCAD in the Fall of 2009, a course that allowed me to shoot at Longwood Gardens after dark in the Spring of 2010, and I will be taking a course at DCAD on landscape photography in the Fall of 2010. [photography portfolio]