How should the participants contribute to the dissemination of the results?
The participants will be primarily responsible for producing the results during the project itself. At the project planning stage, you should also define their role in their subsequent dissemination. It can either be sharing the materials developed by the organizers or refining them together, or both. It is important that their role and expected contribution are known from the outset. During the exchange itself, it is also worth to spend a lot of time and see the propositions of the participants on how they will share the results, so that they also take responsibility. (For example, creating a presentation summarizing the results of your work and displaying it in their universities or in their organizations).
Remember that even publishing photos and videos from the exchange in private or organizational social media is already disseminating the results, because reaching people for whom Erasmus+ is unknown is a big promotion of the program.