This document discusses professional learning communities (PLCs) and their role in promoting collaborative learning and sustained school improvement. It provides an agenda for a training on PLCs that will give an overview of their structure and function, how they promote improved teaching and learning, protocols that facilitate learning, and their role in a culture of teacher-directed professional development focused on student learning. The training will review essential elements of PLCs, protocols for examining professional practice, discussions, and student work, as well as how to address issues and problems. It emphasizes the importance of collaboration, continuous improvement, and results orientation for effective PLCs.