This paper both presents a framework for analyzing situated emotions and describes the evolution of two teachers' emotions during their first classroom experiences. Based on Peirce's three categories of experience (1931-1935), we categorized teachers' emotions into affective states, sentiments and emotions-types. The principal results show (a) the emotional flow during ordinary teaching situations, (b) the emergence of contradictory emotions related to phenomena of emotional hysteresis between the affective states and sentiments, (c) the typical character of their emotions related to dependence on the lesson plan and the need to maintain student activity, and (d) the importance of typicalization of emotions in learning to teach.