In 2011, we, a group of English as a foreign language teachers at a secondary school in Argentina, decided to investigate our teaching practices through collaborative action research so as to improve our students' learning opportunities and thus revitalise English Language Teaching in our context. We implemented and evaluated the integration of content and language learning in our classrooms through the development of our own materials. The experience revealed a growth in professional development and how our motivation and autonomy influenced our students' motivation and language development. In our attempt to disseminate our experience as a group, this report particularly focuses on the evaluation facets of our CAR project so as to encourage other teachers and teacherresearchers to adopt CAR to improve their own practices.

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