This document outlines the process of peer observation for teacher professional development. It begins by defining professional development as the continual growth of teachers' knowledge, skills, and attitudes. Peer observation is identified as an alternative for professional development that builds collegiality and provides formative feedback. The benefits, conditions, and three-step process of peer observation are described. This includes selecting colleagues, pre-observation meetings, classroom observations, and post-observation feedback. Guidelines for factual, non-judgmental feedback focused on teacher actions are provided. The document concludes by modeling a simulated peer observation experience and role play.