In earlier posts, I have described and interpreted how a high school history teacher taught history in a failing school (see here and here). In Part 3, I described a veteran history teacher in the same school and the four lessons he taught when I observed him in November 2013. Gary Hart (a pseudonym) taught world and U.S. history. In all of the lessons I watched, the sequence of activities unfolded in the same order: students signing in when they entered, sitting and talking until Hart caught their attention directing them to answer questions on the white board, the teacher supervising their  answering questions with scattered students chatting and having to be admonished repeatedly before settling into the task. In each class, Hart used worksheets drawn from the textbook covering particular pages and then supervised students by walking around as most (but not all) students completed the task. At…