Jane Bozarth tweeted an article she wrote for Learning Solutions Magazine this morning. It's a great piece on the role of surprise in learning design. It struck a chord for me because she's right -- we do focus on consistency in ID the vast majority of the time. I can see where something new and different suddenly popping up would garner more attention and would perhaps emphasize a concept that you as faculty think is particularly important.
Read the article here: http://www.learningsolutionsmag.com/articles/622/nuts-and-bolts-surprise
Photo from Smithsonian on Flickr