Programs for the reform of K-12 science teaching today usually insist that science teachers must introduce their students to the nature of science, as well as to scientific content. The academic field of science studies, however, evinces no consensus about what the nature of science really is. This article examines how science educators and educational researchers have drawn on the fragmented teachings of science studies about the nature of science, and how they have used those teachings as a resource in (...) their own projects. It identifies three competing movements for the reform of science teaching that owe a particular debt to science studies: history and philosophy of science, science, technology, and society, and constructivist pedagogy. The article analyzes some of the deep assumptions about the relationships between research science, school science, and children’s learning that pervade the educational literature. (shrink)