How are you going? What’s not making sense? Suggestions for improvement?
(Depending on your topic's structure, this survey could instead be in week 4). You can modify the survey (delete/add questions). You could use this survey to find out the muddiest points for the topic so far, and address these in an online forum, or scaffold their learning using additional resources (eg a video you create yourself or an open educational resource). The results of the survey are easily viewed using the tool's Analysis tab.