Our society's preoccupation with making educational policy and practice "scientific" is attested to by the stated mission of the Institute of Education Sciences: "to provide rigorous evidence on which to ground education practice and policy." Early in the twentieth century, John Dewey also advocated for a vision of education guided by science, and more recent scholarship has validated many of his ideas. However, as Deborah Seltzer-Kelly argues in this essay, Dewey's vision of a scientifically based system of education was very different from that envisioned by the IES, and also very different from that implied by the progenitor of contemporary evolutionary thought, Donald Campbell. Seltzer-Kelly proposes a Deweyan Darwinist model of educational method as a genuinely scientific alternative to the scientism that pervades current official efforts to imbue education with science. The implications of this model are profound, highlighting the difference between education as preparation for consent to authoritarian structures and education as preparation for genuinely democratic participation.