In this paper, the author maps three radically different visions of Marxism in educational philosophy. Each "register" contains insights but also contradictions that cannot easily be resolved through internal modifications of the theory or through theoretical synthesis with other registers. The radical function of Marxist pedagogy is to create a constellation of Marxisms through which the outline of history can emerge. As such, the author ends with a new emphasis in Marxist education on the "exacting imagination" of the teacher which creates a constellational image of concepts and theories all of which hang in a precarious and historically specific configuration.