Effective turn-taking is vital for successful participation in group discussions. In Japanese EFL contexts, group discussion often exhibits turn-taking behavior that is markedly different from that of competent English speakers, often limited to each participant making a short speech and brief comments of agreement or disagreement. Turn-taking behavior is also a major component of the interaction in cooperative board games, which encourage group decision-making and often exhibit more varied forms of turn-taking. This presentation describes the use of cooperative board gameplay in the classroom as a training aid to develop learners' turn-taking skills. First, the presenter will explain the characteristics of cooperative board games from a TBLT perspective, including the range of speech acts contained within their gameplay. Then an analysis of student transcripts collected over one semester will be presented to illustrate changes in student turn-taking behavior in a variety of contexts. The changes explored include differences in turn lengths, speech act use, and turn-taking patterns of learners. The presentation will conclude with some suggestions for using cooperative board games in the language classroom to maximize language use.