There are few oral presentations given today that don’t make use of visual aids. It helps with the inevitable attention wandering and it allows you to reach different types of learners. Always try to make your presentations—including opening statements and closing arguments—memorable for all of your listeners.
An episode of This American Life described the failed effort to get a Tic-tac-toe-playing chicken into evidence in the death penalty case of a mentally ill man with a very low IQ. Defense counsel was trying to rebut a psychiatrist’s testimony that the defendant was aware he was going to be executed based on his beating her in a game of Tic-tac-toe. We’ll never know who would have won the game; the court refused to admit the chicken because it “would degrade the dignity of the court.” Although the chicken didn’t work out, demonstrative evidence can be a very powerful courtroom tool.