It's much easier to participate when we know how to.
Model how and when you want students to participate in discussions and provoke their opinions and thoughts in your discussion forum/ Chat. If you invite them to share additional learning material that they encountered, do so as well and provide it with a short info!
Further, students bear some responsibility for the success of the course, including a (potentially) cold or fun atmosphere, so do communicate your expectations as well as your vision for the chat clearly: is it a “tea room”, a “Q&A”, a "library of threads and contributions on specific topics" or should it be considered a “glossary” etc.?
After all, if you want your students to be active in written discussions, practice as you preach.
In every course with an interactive element.
MINI: You can use these tips quickly and with little effort in your current teaching.
Consider recording a short video in which you explain your teaching approach as to underline the reasoning for your expectations and intentions (for tools and implementation steps see Micro lectures). - Include guidance on how to succeed in the course (and what interferes with success) if this is connected to how you intend the interactions to go. - A code of conduct clarifies how you expect everyone to respond to each other. - Literature finds that more demanding courses with high expectations are rated better by students.