Had you been asked to divide your life into sub-categories, how many (and what) would there have been? Exactly. This how a teacher’s mind is all the time. Especially when in a classroom, while teaching. During a lesson we are always concerned with our student’s mental processes  - if they are processing the information being given, if they are accepting it, if they are following the steps, if they are acquiring language or skills, if they are overwhelmed, if their affective filters are high or low, etc. At...