I reflected quite a lot on this topic, especially when thinking of the courses I teach. My main thoughts here relate to opening educational resources with other teachers and students. The idea is to help teachers get easy access to high-quality material. In the end the main goal is to reduce workload for teachers and make sure that material will be available to teachers and students through an open repository.

One can use, for example, a repository in Github with open materials that anybody can use, adapt it as they see fit, extend with new topics and so on. In the end this could be helpful to create a community similar to open-source software projects.

I am envisioning that such a new way of creating courses will not only provide open content, but can be used to improve the material. Of course, there needs to be guidelines for the contribution that invite others to improve and share additional material.

I see this as a way to enable the sharing of teaching expertise and learning resources. We go from from a culture of restricted access to material and textbooks to one of openness, reusing, sharing and improvement. This can be a culture shift!