Language teacher expertise research: A theoretical case and research agenda

Abstract Expertise exists among all communities of educational practitioners at all levels and in all national contexts. By identifying expert practitioners, learning from them and valuing their professional competence, researchers can support, promote and build upon sustainable, embodied, holistic models of quality in ways that have direct relevance for the classroom, the curriculum and wider educational goals. Yet, despite its potential as a field of research, there have been relatively few studies involving expert language teachers to date. After a brief historical background, this article makes the case for language teacher expertise research, noting its high ecological validity, its great practical utility, its ability to bridge the research–practice divide and its potentially positive impact on teaching communities. Key methodological considerations are also discussed, including defining expertise, identifying expert teachers and looking beyond the limits of subject-specific pedagogy to understand the whole practitioner in their sociocultural context. The article then proposes a framework for future teacher expertise research that spans diverse methodologies. Six example research tasks from within this framework are proposed, each justified and exemplified, incorporating suggestions for research design that are intended to encourage both experienced and novice researchers to engage with teacher expertise as a promising domain for future investigation.