W. James Lewis is an Aaron Douglas Professor of Mathematics at the University of Nebraska-Lincoln. He received his doctorate in mathematics from Louisiana State University. Yeping Li is a Professor of Mathematics Education at Texas A&M University and "Eastern Scholar" Chair Professor at Shanghai Normal University. He received his PhD in Cognitive Studies in Education from the University of Pittsburgh. James J. Madden is the Patricia Hewlett Bodin Distinguished Professor of Mathematics at Louisiana State University and Co-Director of the Gordon A. Cain Center for STEM Literacy at LSU. He received his PhD in Mathematics from Wesleyan University.