Queer theory and action research together offer possibilities for exposing the deep injustice of both homophobia and heterosexism. Underpinning identity categories of sexuality and gender, these forms of social injustice lurk in schools, families, religions, communities, and nation-states. For educators and educational researchers, addressing homophobia and heterosexism in schools and other educational institutions may be enabled through action research that takes up the premises of queer theory. The inquiry part of queer theory and research is interested in how gender, sex, desire, and sexuality organise all human behaviour. Action research can materialise the radical potential of queer theory through research projects that provide opportunities for homophobic and heterosexist teachers, students, administrators, counsellors, parents, and even researchers towards asking questions about how they identify self and other and how this in turn is implicated in a social hierarchy that devalues those whose sexual practices are different from the norm. (Contains 1 note.)