The teacher professional growth system (PGS), one of three PGS at Montgomery County Public Schools (MCPS), a US school system and winner of the 2010 Malcolm Baldrige National Quality Award (Education Sector), incorporated six rigorous standards for teacher performance and provided examples of actions that demonstrated that the teacher met standard, and examples of behaviours that would not meet standard. PGS’s were also established for administrators and support professionals. Systemwide profe...