Douglas L. Corey is a Professor of Mathematics Education at Brigham Young University.Hiroyuki Ninomiya is a Professor of Mathematics Education at Saitama University.Blake E. Peterson is a Professor of Mathematics Education at Brigham Young University.Kazuhiko Soma is a Professor of Mathematics Education at Hokkaido University of Education.Susumu Kunimune is a Professor Emeritus of Mathematics Education at Shizuoka University.