How to make it easier for people to visualize the course content and then suggest improvements? How to stimulate thinking by making abstractions physical?
Get a dozen cardboard boxes (or other 3-dimensional objects) of different sizes, label each so that it represents a different aspect of the course, for example one box could be tagged: "Writing journal entries on the course website" or "meeting with union activist" or "watching film Human Resources" or "student participation"...
Spread the boxes around the room. Next to each place paper and pens, so people can write comments.
Ask people to circulate around the room, discussing the different aspects of the course and writing suggestions for improvement. How could the course website be better used? Should there be more or fewer journal entries? How could we get more participation?
Give a defined time and then let people circulate freely. When time is up, ask someone to pick up a box, offer one way to improve it, and begin passing it, person to person, to the front of the room. As people pass it along, they mention suggestions for improvement to that element.
Other report back/feedback methods can be used. For example, ask people to stack all the boxes with the most important on the bottom. Take a picture of the stack -- which is also a summary of the participants' feedback -- then go over each box and summarize the suggestions.
If the boxes are square, you can write on each face and then roll them like dice, talking about the side that comes up.
The written comments will be collected, so the report back doesn't have to exhaustive and can focus instead on what stood out to people.