A lesson plan outlines the structure and activities of a lesson, showing the starting point, end point, and route to get there. It is a teacher's framework for what they hope to achieve and how. While experienced teachers may plan mentally or with brief notes, all teachers should take time to thoughtfully plan lessons in order to provide clear direction for students, address objectives, and anticipate challenges. If a lesson has no planning, it could be disorganized and ineffective like a journey with no map.