Professional learning communities (PLCs) are ongoing groups of educators who work collaboratively to improve student outcomes. PLCs operate under the assumption that improved educator learning leads to improved student learning. There are three big ideas of PLCs: 1) ensuring all students learn, 2) cultivating a culture of collaboration through teamwork, and 3) making data-driven decisions focused on results. Effective PLCs schedule regular collaboration time, focus on critical student learning questions, and establish team norms to guide their work towards improving student achievement.