My brother sent me a very interesting video a couple of weeks ago, and I was watching it again this morning and thinking about it. It´s a very funny trick a math teacher did during one of his Nature of Math classes at Biola University.
This is a great example of a good and effective communication technique! A great way to make a boring class be interesting.
As Walt Disney said: "I would rather entertain and hope that people learned something than educate people and hope they were entertained".