https://www.youtube.com/watch?v=-VR17YI2AjM What would you tell this person to move them toward more efficient and more effective movements? As a teacher, therapist or a coach, your job is to enhance a person’s ability to learn. But if we allow poor practice habits overlaid with errors in movement, the learning that happens will not be useful. It is difficult to “unlearn” a movement when you have learned it with bad habits or errors incorporated into it. Diagnosing errors and assisting student with diagnosing their own errors is a necessary and useful part of instruction.