Adapting the COLT observation scheme for translanguaging-focused classroom research: A method tutorial

Research on classroom translanguaging has expanded rapidly, but the research tools for observing and coding translanguaging are conspicuous by their absence. Studies vary in how they segment classroom time, define translanguaging episodes, operationalize pedagogical functions and report coding reliability, which limits cross-study comparison and cumulative evidence-building. This method tutorial presents COLT-TL, an adaptation of the Communicative Orientation of Language Teaching observation scheme (COLT; Spada, 2024; Spada & Fröhlich, 1995) for translanguaging-focused classroom research. The adapted instrument retains COLT’s macro-level lesson segmentation while reconfiguring its discourse-level categories around a translanguaging episode layer. Episodes are coded for translanguaging type, pedagogical function, interactional direction, language directionality, material relationship, contextual notes, professional development entry points and duration. COLT-TL was developed and piloted across 38 secondary EFL lessons in Poland and Azerbaijan. Inter-coder agreement on core categorical variables reached κ = .85. The tutorial explains the adaptation rationale, demonstrates the coding procedure through worked classroom examples and discusses reliability procedures, scope limitations and transferability. COLT-TL does not propose a new theory of translanguaging, as its contribution is methodological: a principled and replicable observation instrument for making translanguaging visible as a structured, functional and sequential classroom practice in multilingual education contexts.