Acknowledgements Acknowledgements
This book is an application of research I have conducted on the teaching and learning of algebra at both the K-12 and the university levels. My work was influenced by many scholars, but in particular, the work of the late Dr. Jim Kaput, as well as Dr. Kathy Heid, Dr. Rose Zbiek, and Dr. Anna Sfard stand out as those who have profoundly shaped my thinking.
