Powerpoint

The worst powerpoint I've had to sit through was probably by a professor I took not too long ago who I'll keep anonymous.  They basically lectured from a powerpoint with black letters on a white background which they created a few hours before class.  I know professors are strapped for time, but color would have been nice.  Really, I didn't really care too much because they didn't really use it very often;  it just sort of added to the ambient light of the room.  So, I guess my first two things that I hate would be: black text on white background and not using the actually using the powerpoint.  When they did actually use it it tended to be overly long: say, by about 30 or 40 slides, so that to get through it all they would have to go so fast that I couldn't really write much down.  There would also be a lot of skipping slides due to the time factor.  So, numbers 3 and 4 would be: overly long, and long to the point of having to skip slides to finish.  To add insult to injury, most of the stuff in the presentations wouldn't end up on the test, so number 5 would be irrelevance.  I hope I never do this to anyone.