A lesson plan is the trainer's road map for what students must learn and how it will be accomplished effectively during class. Then you can create appropriate learning activities and strategies for obtaining feedback on student learning. Having a carefully planned lesson plan for each 3-hour lesson gives you more confidence in the classroom and increases your chances of having a meaningful learning experience with your students. A lesson plan, while not exhaustive, provides a general outline of your teaching goals, learning objectives, and methods for achieving them. A productive lesson is one in which students and instructors learn from each other, rather than one in which everything goes as planned.
