PTR is a teacher preparation program for STEM professionals and recent graduates who want to teach mathematics and science in Philadelphia’s high-needs schools. For a full year, PTR participants work alongside experienced math/science teachers while taking courses at University of Pennsylvania Graduate School of Education to earn both a master’s degree as well as Pennsylvania teacher certification. Participants commit to teach in Philadelphia public schools for at least three years after the residency year. During this time, PTR provides networking activities that support the professional growth of its novice teachers. A program of the Philadelphia Education Fund, a not-for-profit organization whose mission is to improve the quality of public education in Philadelphia, PTR is dedicated to the thorough preparation and subsequent retention of mathematics and science teachers in high-needs schools.