Do your students need a chance to revisit concepts and content from past modules? Is there more to say about topics already discussed?
Online Fashion Journalism Instructor Alexey Bulokhov (FSH 313: Style Icons and Fashion Objects), has a solution. He noted that his class had
no designated outlet for students (or me as an instructor) to share insights, resources, references or experiences that pertain to modules already covered. Earlier discussion threads close. New module discussion threads don't seem like a proper space to bring up "oh and by the way, here is the latest article or image relevant to four modules ago." One does not want to derail the conversation from that week's topic.
So as a compliment to the "First Impressions" discussion thread Alexey set up at the beginning of the semester, he added a new optional discussion topic after midterm.
In most cases, Alexey notes, [the comments in this topic consisted of] information or reactions that could have been missed otherwise... [They] provided opportunity for ungraded peer-to-peer interaction and pressure-less feedback options and gave [students] a space/tools to build on learned information at their pace over time...
Overall, the "First Impressions" and "Circle Back To..." discussion threads generated 210 additional responses from my students. I calculated that the semester's average number of discussion posts per module was 55, so this equals almost four (!) weeks worth of additional engagement.