This paper addresses the issue of how human beings construct themselves as subjects and the parameters within which this is achieved. We question models in which idealism shapes the trajectory of identity formation and consider how identity might be seen alternatively as a somewhat awkward amalgam of identifications with diverse discursive domains. The particular focus is on teachers conducting 'emancipatory' practitioner research and on how the researcher understands his/her interface with the situation he/she is researching. We survey a range of theoretical models as offered by some leading writers, with particular reference to Jacques Lacan, and consider each in relation to how the teacher researcher might be understood. We provide as an example an account of one teacher researcher examining issues of ethnicity and gender in her secondary school French classes.