Professional learning is the means by which teachers, administrators and other school and system employees acquire, enhance or refine the knowledge, skills and dispositions necessary to create and support high levels of learning for all students. Professional learning, professional development, staff development, and inservice training are synonymous terms. In order for students to learn and perform at high levels, educators must be learning virtually all of the time. Optimal professional learning is standards-based, results-driven, systemic, ongoing, and embedded into the daily routine of educators. The purpose of professional learning is quality learning and superior performance for all students and staff.