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William J. Gratzer


Ed.D., Mathematics Education, Teachers College of Columbia University
MS, Biostatistics, Columbia University, School of Public Health
MS, Mathematics Education, Long Island University
BS, Mathematics, Long Island University

Office: Spellman Hall, 2nd Floor, Rm. 206 G
Phone: (914) 633-2400
Office Hours: Currently on Sabbatical

Dr. Gratzer has been teaching college level math in a variety of subjects for more than 30 years.  He has taught courses at the undergraduate and graduate level, including remedial mathematics, pre-calculus, calculus, statistics, linear algebra, numerical methods, and introductory programming. Dr. Gratzer’s initial research focused on the introduction of exploratory data analytic methods into traditional non-calculus based college statistics courses, while some of his later research has covered topics in statistics education, mathematics education, and Family Health History.

Dr. Gratzer co-authored a workbook, ”Mathematical Tools and Their Use,” that introduced students to a variety of mathematical ideas using the TI-55 calculator. While at Iona he was the author or co-author of more than 15 articles and was the presenter or co-presenter at over 20 conferences. He is currently working on a technology based introductory calculus textbook.

Research Interests

Dr. Gratzer’s current academic interests revolve around the role of technology in mathematics and statistics education. Specifically, how should the availability of technology change the approach used in the classroom? Can technology be an add-on to the traditional methods of delivery, or must there be a core structural change?