Center for Mathematics Education


Math_CenterThe Center for Mathematics Education was created in Fall 2004, and it is designed to enhance the teaching and learning of mathematics for all children, youth, and adults.  To accomplish this purpose, the Center has engaged in three simultaneous and interrelated activities.  First, the Center directly impacts the teacher development continuum from pre-service preparation to beginning teacher induction and socialization into teaching and on through continued professional development.  Second, the Center promotes and sustains an agenda of research designed to enhance the knowledge base of teaching and learning in mathematics education and to address problems of practice in teaching mathematics.  Third, the Center, through its activities, promotes and enhances the learning of mathematics of all persons from preschool through graduate school by engaging in a coordinated outreach program touching students, schools, and school districts throughout Indiana.


Liz Brown Dr. Elizabeth Brown is a Professor in the Department of Mathematics and Computer Science and Associate Dean of the College of Arts and Sciences.  She earned a B.S.  in Applied Mathematics from San Diego State University, an M.S. in Mathematics from the University of Utah, and a Ph.D. in Teaching and Learning with an emphasis in Mathematics Education from the University of Utah.  She has been a faculty member at ISU since 2000.  She is interested in mathematics teacher preparation and professional development as well as mathematics curriculum development.  Dr. Brown is a 2011 recipient of the Caleb Mills Distinguished Teaching Award and serves on the Board of the Indiana Council of Teachers of Mathematics.
Marilyn Leinenbach Dr. Marylin Leinenbach is an associate professor in the Department of Elementary, Early, and Special Education. She has a bachelor of arts in mathematics from St. Mary-of-the-Woods College and a doctorate in curriculum and instruction from Indiana State University. She taught mathematics to children in grades 5-8 for 28 years and currently prepares elementary pre-service teachers in mathematics methods. Leinenbach is a National Board Certified Teacher, the recipient of the Disney American Teacher Award in Mathematics, is a 2012 recipient of the Caleb Mills Distinguished Teaching Award and has presented at numerous national, regional, and state workshops for teachers. She has been active in local schools for many years, is well versed in mathematics curricula, and has a vast knowledge of mathematics teaching methods. She can be reached at 812-237-2847 or by e-mail at

CME Faculty

Jodi Frost Dr. Jodi Frost received her Ph.D. From University of Idaho in 2012 in Mathematics, with an emphasis in Mathematics Education.  She also has an MS in mathematics from University of Idaho.  She graduated from Pitzer College with a BA in 1995 with a dual major in mathematics and science, technology & society (STS).  Before she started graduate school, Dr. Frost spent about 9 years working in the human resource and payroll fields.  
Yi-Yin Ko Dr. Yi-Yin (Winnie) Ko is an Assistant Professor in the Department of Mathematics and Computer Science. She has a bachelor of science in mathematics from Tunghai University in Taiwan, a master of science in mathematics from National Changhua University of Education in Taiwan, and a doctorate in curriculum and instruction with an emphasis in mathematics education from the University of Wisconsin-Madison. Her primary research interests concern the teaching and learning of fundamental mathematical practices in both school and university settings, particularly as they relate to mathematical reasoning, representation, generalization, justification, and proof. Her other research interest includes the development of pre-service and in-service teachers’ mathematical knowledge for teaching using video-based cases of students’ thinking and teaching practices. She can be reached at 812-237-7649 or by email at

CME Advisor

Patricia Butwin Patricia (Patty) Butwin, a graduate of Indiana State University and a resident of Avon, IN, is a results-oriented professional manager, educator, and consultant. Her professional credentials include: “7 years in 7th grade” as a Junior High School Mathematics teacher; a variety of management positions with AT&T in locations across the US from New Jersey to California; and two long-term consulting assignments during which she provided project/program management, process management, contract negotiations and contract management support, legal research, and regulatory compliance support.  In addition to her “for-profit ventures”, she has used her talents, skills, and business acumen in a variety of volunteer activities for several organizations including: Hendricks Regional Health (2005-2007), Providence Cristo Rey High School (2006-2007), the Money Bus- Financial Literacy Program sponsored by ISU Networks Financial Institute ( 2006-2008) , the ISU Center for Mathematics Education, St Susanna Church (Plainfield, IN) Religious Education Program, the Indiana State University Foundation and the Terre Haute Children’s Museum. Currently Patty is working with the Co-Directors of the ISU Center for Mathematics Education to develop a Financial Fitness Outreach Program targeted to residents of the Wabash Valley and sponsored by a grant to the Indiana State University from Old National Bank.