Curtis, I guess there are levels or disengagement; broad and specific. Broadly, some students may lose the big picture about why they're in school. Specific is like days when they may seem to be distracted from the days lessons. It's more the latter that we have control over, and can intervene by asking them questions, getting them into discussion, or other ways to assure participation. Engaged students retain more of their lesson material and do better overall in their classes. Barry Westling