Autor: Susan Jo Russell

Deborah Schifter has worked as an applied mathematician; has taught elementary, secondary, and college level mathematics; and, since 1985, has been a mathematics teacher educator and educational researcher at Mount Holyoke College and at the Education Development Center. She authored Reconstructing Mathematics Education: Stories of Teachers Meeting the Challenge of Reform and edited a two-volume anthology of teachers′ writing, What′s Happening in Math Class? for which she received the American Educational Research Association Professional Service Award in recognition of an outstanding contribution relating research to practice. She was a writer for The Mathematical Education of Teachers as well as the second and third editions of the K-5 curriculum, Investigations in Number, Data, and Space. Her recent research has focused on students’ mathematical generalizations and how students use a variety of representations to explain why such generalizations are true.