^{*}Jennifer Suh, jsuh4@gmu.edu, is an assistant professor of mathematics education at George Mason University (GMU) in Fairfax, Virginia. She is interested in developing teachers' mathematical knowledge for teaching through lesson study and professional development workshops.

^{*}Padmanabhan Seshaiyer, pseshaiy@gmu.edu, is an associate professor of mathematical sciences at GMU. His work with K–grade 12 teachers focuses on deepening their mathematical content knowledge.

^{*}Edited by Spencer Jamieson, Spencer.jamieson@fcps.edu, a mathematics resource teacher for the Instructional Services Department of Fairfax County Public Schools (FCPS) in Virginia; Patricia W. Freeman, pfreema1@gmu.edu, who teaches algebra 1 and geometry to eighth graders at Franklin Middle School in Chantilly, Virginia, while pursuing a doctorate in Mathematics Education Leadership at GMU; and Courtney Baker, cbaker@gmu.edu, who is a mathematics consultant for FCPS and a GMU doctoral student. Technology from the Classroom is the venue for sharing articles that illustrate the effective use of technology in pre-K–grade 6 mathematics classrooms. Send submissions of no more than 1500 words to this department by accessing tcm.msubmit.net. See detailed submission guidelines for all departments at http://www.nctm.org/tcmdepartments.