Supervision involves enabling teachers to improve instruction for students and is not the same as teaching. The supervision process includes evaluation, which is a formal process of gathering information over time to determine if a teacher meets teaching standards. Evaluation aims to ensure quality teaching and promote professional learning. Supervision includes goal setting, using evaluation tools and instruments, different supervisory styles like directive and collaborative, and providing focused assistance. A key part of supervision is the circle of supervision which involves pre-observation meetings, observations, and post-observation discussions between the teacher and evaluator.