The possibility of exploiting technology for more robust and meaningful learning and teaching has invoked messianic responses from the language education community. Yet to be explored are teachers’ pedagogical choices based on the perceived technological affordances as well as interactions between teacher and student agency mediated by these affordances in the ecology of a classroom. This qualitative case study adopts an ecological approach, aiming to address rather than factor out the broader social context in a physical classroom. With data collected from 30 hours of classroom observation and 10 post-observation interviews with the participant teacher, the study makes an attempt to show how the ecological model of language learning can provide a theoretical lens through which to explore teachers’ practices of CALL that aim to encourage learner agency. The analysis centers on three focused extracts that illustrate interaction between and among the affordance of technology, the teacher participant’s pedagogical considerations, and her goal of encouraging learner agency. The result of the study emphasizes the teacher’s role from an ecological perspective and classroom learner agency mediated by technology, which provides useful insight that can contribute to language teaching practice with technology in the classroom.

Learner agency, the capability of individual human beings to make choices and act on these choices in a way that makes a difference in their lives (Martin, 2004), is instrumental in second language learning because attainment is only arrived at by learner choice (Pavlenko & Lantolf, 2000). If attainment is understood as learner engagement in synchronous, collaborative, spoken interaction which is thought to lead to gains in second language acquisition (SLA), then design considerations that harness learners’ agency towards that end is important. This study explores the relationship between learner agency and two different task types, namely an information-gap task and an opinion-sharing task in two peer-to-peer synchronous computer-mediated communication (SCMC) spoken interaction events. Students’ choices and how students act on these choices during tasks are analysed using a discourse analysis approach. Audio recordings of four dyads as cases were examined using three analytical dimensions: language functions of verbal interaction, cognitive processing and social processing. The results show that most learners used their agency to reconfigure the tasks from spontaneous to planned interaction, with some choices and actions relating to technology impacting detrimentally on interaction time in the target language. The different tasks were found to filter and channel different types of agency that learners could exercise, namely representational, organisational, and strategic agency as speech acts, and directional agency as a physical act. These types consisted of different natures and purposes and are presented as a framework. The information-gap task supported strategic agency and an opinion-sharing task supported personalisation and identity construction or representational agency.