The Marxist concept of class is necessary in order to combat neo-liberal and neoconservative initiatives that work systematically to reduce education to an adjunct serving the interests of the capitalist class in extracting ever more profit for itself. The Marxist concept of class, because it connects inequitable social relations and explains them as both connected and rooted in the social relations of production, enables class consciousness and the knowledges necessary to replace capitalism with socialism. The Marxist concept of class, however, has been emptied of its explanatory power by theorists in the field of education as elsewhere who have converted it into a term that simply describes, and cannot explain the root causes of, strata of the population and the inequities among them. This essay critiques sample theorists in the field of education who have participated in the conversion of the Marxist concept of class to a descriptive term by culturalizing it - pluralizing it and cutting its connection to the social relations of exploitation that are central to capitalism. Such knowledge workers serve the interests of the capitalist class. The essay argues for the necessity of the Marxist concept of class, as well as of class consciousness, in combating and transforming capitalism into socialism