International Journal of Applied Linguistics (United Kingdom), 2025 (AHCI, SSCI, Scopus)
In task-based language learning, learners have to deal with the challenge of moving the task and the talk concurrently forward. In doing so, they develop sets of task-relevant, interactional, and multimodal resources. In this study we use multimodal longitudinal conversation analysis to investigate one learner's L2 interactional competence development in video-mediated task-based interactions in English as a foreign language. We present how the L2 learner appropriates an interactional resource from the co-participant's talk, uses the resource in her own turns, and eventually transfers it to new contexts. The findings bring new insights into the affordances of task-based interactions for learners' L2 development.