In this article, we discuss the status of student productions in learning environments and the ways in which they can be valued as contributions, i.e., reusable resources. Through a review of the literature and case experiences, we characterize the notion of contribution in an educational context. We present a model of the processes and the contexts of their reuse, particularly with respect to the actor's roles and dissemination scope. Our proposition contributes to the implementation of a "circular economy" of learning productions in a context of active pedagogy, mass education, and open education.