Resum:
This document describes the use of open resources in the FLeD project. After a brief description of our project, we delve into the description of open resources as given by the UNESCO, together with key criteria these resources must have. We then proceed to describe the open resources we have created in this project, together with the process of feedback, validation and publication of each of these resources. In the conclusions, we reflect on the positive aspects of this process, and also suggest improvements for upcoming open resource publications.