Use photo editing software as a teaching tool to bring inaccessible polygon definitions within reach of your students' understanding.
Michael Todd Edwards, edwardm2@muohio.edu, and Suzanne Harper, harpersr@muohio.edu, are mathematics education colleagues at Miami University, Oxford, Ohio, where they teach preservice and in-service mathematics teachers. Their professional interests include the development of technology-oriented instructional materials that foster rich mathematical explorations in the early grades.