Dr. Meers,
In numerous courses I have taught, I've restrained myself from using the element of surprise because of fear that it could backfire and completely cause the wrong effect.
As a computer support instructor, I would find it fitting that computer technicians in training would benefit from ocassionally being surprised. For instance, one time I planned a drill that would have a student perplexed, encountering a computer that is malfunctioning after it was working perfectly fine before the coffee break. I've done this drill a few times with mixed success. One time, the students were able to succesfully fix… >>>