This exercise simulates a small crew from a local television station who are assigned to cover some sort of small demo or event. It could be a presentation about cooking (think Food Network), or a short piece about a local craftsman, or a short instructional video. Maybe even coverage of some physical contest, such as golf or table-top penny football.
The reporter/host will hold a wireless handheld mic and be equipped with wireless IFB earpiece (to hear program content as well as producer's instructions during the segment). If wireless gear is not available, then utilize a hard-wired earpiece and/or microphone. During the segment, utilize the IFB to direct the Host to ask specific questions that the Producer thinks pertinent, and to control the pace.
The featured guests performing the demo will be rigged with lavaliers. As this is obviously being played to camera, there is no aesthetic need to hide the microphones under clothing, unless Talent's wardrobe makes the use of a tie bar impractical. Just because a microphone CAN be seen, does not mean that it MUST be seen. Talent can be rigged with either wireless or hard-wired microphones, based on availablility. Neatness counts! This is going to be televised, so no sloppy rigging of visible cables.
A sound effects mic will be deployed to emphasize the FX track of the physical demo. Good sound effects add a lot of dimension to any demo or sports event. Audiences want to hear the sizzle of the saute pan, the chopping of the vegetables, the whipping and impact of the golf club, and so on.
The Host should interact with the live audience, as well. Bring someone up to participate with the experts. Use the handheld microphone for introducing the audience members, and getting their responses.
A boomperson should be just out of frame, and ready to capture any ambiant sounds or effects that are not being picked up by the talent mics or the planted sound effects mic.
Treat this like a TV segment. The Producer should keep track of segment time. Use the IFB to cue the Host when we are "live", when to go to commercial, when we are back, and when to wrap it all up. Segment should be an assigned time, such as two minutes to the first break, and then two minutes to closing, or whatever length the instructor deems.
I find that this is a good opportunity to get out of the classroom and set up somewhere else on campus. The students learn to deal with background noise, and foot traffic. Stress the importance of safety and cord management. Give them a taste of what it would be like working in the real world.