By comparison, last winter's mental experiment was a breeze: I spent hours in a mesmerized state watching Bobby Clampett swing in super slow motion, on his "Impact Zone: Personal Golf MasterySystem" DVD.
Of course, if there were instead systems of assessments in a competency-based learning system built for students to take an assessment on-demand when they were ready to demonstrate mastery on specific competencies, we would see a different picture develop with assessments that left no doubt that they were different.