Learning resources have been created to represent digital units of exchangeable materials that teachers and learners can pull from in order to support the learning processes. They resource themselves. Leveraging the web, one can often find these resources. But what characteristics do they need in order to be easily exchangeable? Although several investigations have explored the ways in which resources are transforming the practice and ways to publish, few have considered realistic use cases, where the technical competency of the teacher is accounted for. Based on a concrete context-crossing exchange, this paper highlights facets of learning resources that enable an exchange of learning resources and, thus, the exchange of practices. Doing this allows us to highlight important facets that learning resources should show in order for them to be found, to be adopted, and to be adapted.