The purpose of this study is to embody transactional conversation between learners in Speaking · Listening teaching situation. 'Verständi- gung' means the process of mediating decisions that is made between interdependence relationships. There are some maxim, considered situat- ion and relationship above logicality and rationality in 'Verständigung'. In this study, the category of transactional communication in the process of 'Verständigung' are classified 'Expansion, Response, Emphasize, Irrelevant act'. As a result of this analysis, types of 'Verständigung' in small group conversation of student, 'pattern of follow', 'pattern of extinction', 'pattern of alteration' are established. The learner of Speaking · Listening Class should have experience that mediate decision each other in transactional conversation. And take part in 'Verständigung' positively. More and more small group conversation of Speaking · Listening Classes are analyzed in many quarters. 【key word】 small group conversation, 'Verständigung', decision-making, the category of transactional communication, types of 'Verständigung'