Jon,
I agree that guest speakers can invigorate a class. Often, the need to refocus is immediate and beyond the practicality of planning a guest speaker. At these times, there are simple ways, such as circulating around the room, or asking specific students questions. More vigorous activities might include asking students to explain "the last 5-minutes of the course materia"l. Another way is to reengage by relating an interesting story, situation, or unusual occurence that was experienced in the work setting. This seems to always get students attention and allows a momentary break from studies before progressing further. Finally, sometimes… >>>
