Pecha Kucha (which is Japanese for "the sound of conversation") has tapped into a demand for a forum in which people can present, minus boring content. 20 slides each shown for 20 seconds for a total of 6 minutes 40 seconds. Just think of really fast-powered storytelling before the next presenter is up. This keeps presentations concise, the interest level up and gives more people the chance to present. [source]
Go to Pecha Kucha Night to see presentations going on around the world. This was designed in 2003 for designers to show their work quickly. Daniel Pink writes about Pecha Kucha in his Wired article plus shares how images and signs if done right can provide empathy.
I can see this as a great storytelling technique for students and teachers. How about putting together Pecha Kucha events for your students? How about virtual Pecha Kucha sharing in eCoach using SlideShare or VoiceThread?