Former Research Alliance Deputy Director Adriana Villavicencio and former Research Associate Sarah Klevan, together with Montclair State University’s Reva Jaffe-Walter, authored a new paper, “You can’t close your door here: Leveraging Teacher Collaboration to Improve Outcomes for Immigrant English Learners," in the January 2021 issue of Teaching and Teacher Education. In their paper, they examine teacher collaboration and its role in improving outcomes for English Learners (ELs).