Caroline B. Ebby is a mathematics educator and Senior Lecturer at the University of Pennsylvania Graduate School of Education, and a former middle school mathematics teacher. Brittany Hess is a Research Specialist and mathematics instructional coach at the Consortium for Policy Research in Education (CPRE) at the University of Pennsylvania Graduate School of Education, and a former classroom and mathematics lead teacher. Lindsay Goldsmith-Markey is a mathematics teacher educator in La Salle University’s Department of Education and a former classroom teacher and mathematics specialist. Lizzy Pecora is a Senior Research Project Manager at The Wharton School of the University of Pennsylvania. Jennifer Valerio is a mathematics teacher educator and Associate Director of the Urban Teaching Residency Program at the University of Pennsylvania Graduate School of Education, as well as a former mathematics classroom teacher and coordinator. Joy Anderson Davis is a Senior Mathematics Instructional Coach for the Penn Learning Network at the University of Pennsylvania Graduate School of Education and an independent consultant.