This document discusses curriculum implementation and various models of implementation. It defines curriculum as a planned sequence of learning experiences and implementations as how teachers deliver instruction using specified resources. It describes several models of implementation including the Overcoming Resistance to Change Model (ORC) which focuses on gaining teacher advocates and flexibility, the Leadership Obstacle Course Model which treats resistance as problematic, and the Rand Change Agent Model which sees organizational dynamics as barriers. It emphasizes the importance of support, communication and pacing when implementing new curriculums.