^{*}Molly Rawding, mollyrawding@gmail.com, is a mathematics specialist/coach at Fiske Elementary School in Lexington, Massachusetts. She is interested in how teachers and students think about and do math in visual, creative, fun ways.

^{*}Jean Kelly, jeankelly@lexingtonma.org, is a mathematics specialist/coach at Bridge Elementary School in Lexington, Massachusetts. She is interested in building students' understandings of concepts through visuals and puzzles, as well as working with new teachers to foster the joy of learning and teaching math.

^{*}Edited by Theodore Chao, chao.160@osu.edu, an assistant professor of mathematics education at The Ohio State University in Columbus

^{*}Imani Goffney, igoffney@umd.edu, who conducts research at the University of Marylandâ€“ College Park, where she is an assistant professor in mathematics education and teaches courses for undergraduate and graduate students.