This may not be the newest thing, maybe you´re already familiar with it but take a look at this: http://danariely.com/the-books/excerpted-from-chapter-1-%E2%80%93-the-truth-about-relativity-2/
It depends on the audience you are about to teach, what level of knowledge they already have... But still it might be a good place to start, to show a simple example on how it all may work.
If you are teaching in this area you might want to look at some useful software for running experiments in your class: www.moblab.com. If you have wi-fi, students can use mobile devices such as tablets or smart phones as well as PCs.