I've tried out the lesson on your own, and when they listen to feedback from teachers and know what I am understanding it correctly or incorrectly, or silk and is edited and updated, based on the objectives of the study.
I think experimental design their own lessons and to listen to comments from teachers already know what I'm understanding it correctly or incorrectly, or modify and enhance it and bring the correct purpose of the study.
I tried to figure out a lesson by himself and when listening to feedback from instructors and know what I understand is correct or incorrect, or silk and was revised and updated according to the purpose of the study.