Implementation-Relevant Components of Digitally Mediated Teacher Activity Groups in Multilingual Vietnam

In geographically dispersed and multilingual Vietnamese lower-secondary English language teaching contexts, digitally mediated professional development can widen access to peer learning, yet less is known about how dialogue, facilitation, and practical resources are configured under curriculum, workload, and infrastructure constraints. This bounded qualitative case study examined the implementation-relevant components of digitally mediated Teacher Activity Groups and the contextual conditions shaping their operation. The primary dataset comprised eight semi-structured facilitator interviews, supplemented by 24 documentary sources: 18 facilitator-authored reports and six structured observation forms. Interviews were analysed through a hybrid deductive–inductive thematic approach, while documents were analysed abductively to corroborate, qualify, and complicate interview interpretations. Three interrelated components were identified: structured peer dialogue across dispersed professional contexts; facilitation routines as human infrastructure; and modelling with adaptable digital resources. Their reported operation was shaped by workload and time scarcity, curriculum and textbook pressures, infrastructure instability, uneven participation, conceptual uncertainty, and institutional support. The findings illuminate digitally mediated teacher professional learning as a socio-technical arrangement in which professional exchange, facilitation, resources, and context are relationally configured. Instead of quantifying theme prevalence, we present these findings as a contextually grounded interpretation, deliberately avoiding claims regarding programme effectiveness, causal mechanisms, or generalisable outcomes.