A fun and fast-paced way for students or teachers to present or review information is Pecha Kucha. Pecha Kucha is Japanese for chit-chat and involves a slideshow with exactly 20 slides. Each slide is on the screen for exactly 20 seconds; PowerPoint or Keynote is set to automatically advance the slides. That means 20 slides x 20 seconds is 6 minutes and 40 seconds. The specific time limit makes for short and concise presentations. The Pecha Kucha presentations I've seen have been informative and visually interesting. They also become silly and extremely entertaining when the slideshow zooms ahead of the presenter.