The purpose of this study is to suggest the direction of improving EFL learners’ interactional competence in the primary classroom discourse, and to suggest the checklist of evaluating teacher talk and pupil talk at the elementary level. In order to devise the checklist, Walsh(2011)’s SETT(self-evaluation of teacher talk) was revised considering EFL situation. The classroom activities were recorded, and the recordings were analysed in terms of the checklist. The results indicate that the features of interactions between teacher and student such as content feedback, referential questions, and clarification, were not implemented appropriately. Thus, in this paper, it is suggested that teachers need to improve EFL learners’ interactional competence considering scaffolding, content feedback, questions, wait-time, and they should design lesson plans based on small-group work in the language classroom to make learners more interactive in longer turns of talk.