We annotated transcripts of human tutoring dialogue for the purpose of constructing a dialogue-based intelligent tutoring system, CIRCSIM-Tutor. The tutors were professors of physiology who were also expert tutors. The students were 1st year medical students who communicated with the tutors using typed communication from separate rooms. The tutors made use of a rich variety of strategies, some specific to particular content areas and others more general, such as showing that the student holds

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... ntradictory beliefs about the domain. In this article, we describe our model of hierarchical goal structure for tutorial dialogues. We catalog each major pedagogical method we found in the dialogues, showing its structure and illustrating the features DISCOURSE PROCESSES, 42(1), Note. K27:68-70. Tu = tutor; St = student; RAP = right atrial pressure; CC = cardiac contractility; SV = stroke volume. 46 KIM, FREEDMAN, GLASS, EVENS FIGURE 2 Method, topic, and primitive goal structure for a short episode of tutoring.