This article explores an aspect of Karl Marx’s concept, praxis. Praxis is meaningful work, through which we fulfil ourselves by fulfilling others. The discussion draws on the author’s work with postgraduate student teachers, where both students and author were researching their own practice. Reflecting Marx’s conception of praxis as subjective fulfilment in the objective world, this activity was intended to trouble and complicate the categories ‘subjective’ and ‘objective’, whilst enabling students to become both more autonomous and other-oriented. The intention behind this article is to develop the theoretical vocabulary of praxis available to educational researchers and practitioners. Some ideas from Lacanian psychoanalysis are introduced...