This paper focuses on Seligman's (2011) PERMA components (positive emotion, engagement, relationships, meaning, and accomplishment) of well-being. Teachers' reflection data have been analysed deductively to identify components of PERMA as relevant to themselves as well their perceptions of their learners' well-being during and after a longitudinal classroom action research project in India. The original British Council study was not focused on well-being but instead on exploring the feasibility of working with children in partnership in classroom research. Teachers reported positive emotions, high levels of engagement, closer relationships with learners in their classes, and they also felt that their work became more meaningful and purposeful. Researching classrooms in partnership with children has the potential to promote many benefits for both learners and teachers, including increased levels of well-being. The paper argues therefore that working in partnership with learners may be an excellent starting point to promote well-being in any classroom.