Perusall, a web-based collaborative reading platform characterised by its social annotation functionalities, was introduced in a postgraduate teacher-training language-awareness course in Hong Kong during the shift to online teaching and learning brought about by the global COVID-19 pandemic. Tasks were designed on Perusall to engage the participants in reading the literature and references on grammar and lexis teaching and in analyses of coursebook materials and classroom-teaching excerpts. In this article, I discuss why Perusall was adopted, the pedagogic innovations at different stages, the impact this had on sharpening participants’ teacher language awareness, and the implications this has for both teacher education and language learning. I aim to highlight how autonomy can be fostered via effective task design and student-centred pedagogies. I maintain that it is not just the platform that matters but how Perusall is utilised with a strategic blend of synchronous and asynchronous classroom activities and instructor intervention to promote teacher language-awareness gains and the empowerment of teachers as grammar specialists and critical coursebook analysts and users. © The Author(s) 2023.

Research on Content and Language Integrated Learning (CLIL) programmes has yielded mixed results regarding their impact on students' language learning, drawing attention to the role of CLIL teachers. This study draws on teacher language awareness research to explore secondary subject content teachers' language-related pedagogical practices when teaching subject content in the medium of English in Hong Kong, with a focus on their form-focussed processing and facilitation of language learning strategies. In the study, data collected through classroom observation and interviews were analysed. The analysis revealed that the participants covered limited language forms and language learning strategies in teaching. Their (lack of) language-related pedagogical practices were further interpreted with reference to their awareness of the roles of language in teaching, their understanding of the demands of the language used for learning, and their knowledge of EFL/ESL pedagogy. These findings confirm the significance of developing subject teachers' language awareness through CLIL teacher education programmes in successfully implementing CLIL programmes. Copyright © 2021 Routledge.