Spectograms are when you draw a line on the floor and have one end be for people that agree with your statement, the other for those that disagree. People can also stand any where in the middle. It's a great way to get out different opinions in the room and also different perspectives.

Back in January, I got to do a five day training on, well, training. We did a spectogram and had quite a bit of fun with the following statements:

"Experts make the best trainers"
"There's no such thing as a bad training, just bad participants"
"You can't over-prepare for a training"