Although postmodernist thought has become prominent in some educational circles, its influence on science education has until recently been rather minor. This paper examines the proposal of Michalinos Zembylas, published earlier in this journal, that Lyotardian postmodernism should be applied to science educational reform in order to achieve the much sought after positive transformation. As a preliminary to this examination several critical points are raised about Lyotard's philosophy of education and philosophy of science which serve to challenge and undermine Zembylas' project. Subsequently, the three main theses of Lyotard that Zembylas considers beneficial and wishes to transpose onto science classrooms and pedagogy are scrutinized and found to be more of a hindrance than a help to curriculum reformers.