Well, do you?
As I'm sure most of us are aware, the NRA forbids any loaded guns or ammunition to be present during NRA-approved courses, to include the instructors. But, for non-NRA-approved courses, do you carry a loaded gun while teaching?
Do you never carry while instructing, whether in a classroom or on the range?
Do you not carry in class, but do on the range?
Do you carry at all times, both in class and in the range?
Does your response depend on the class being taught? (i.e. LE course, basic gun safety class, tactical-style class, known students vs. random strangers off the street)