When I was a middle school math teacher, most of my students enjoyed reviewing math concepts/skills using a Jeopardy game format (assuming you have seen the show). I was lucky in that my roomate, an electronic genius, built my classroom a set of three pushbutton switches connected to an impulse timer that decided which contestant was first...complete with a big reader board that maintained scores. Many students wanted to play it in nonclass hours, so we started "Noon Math Jeopardy" that attracted a reasonable audience.
But, that is all behind me...so what does a classroom teacher do today if they want to play math versions of Jeopardy? Luckily, several web sites have come to your rescue:
 Hardin County teachers (KY) offer several Math Jeopardy (and some other content areas) for grades K12..some even specific to the areas of geometry and probability/statistics. They tend to be very skillfocused. PLUS, they provide a blank gameboard and instructions on how to create your own game.
 Mr. Monir's Math Class (Liberty High school,?)offers a Powerpoint Math Jeopardy game...you have to figure out the navigation rules...but it is at a higher level of difficulty.
 MathBits (Frederick & Donna Roberts)
offer examples of Powerpoint Math Jeopardy games in algebra and geometry (grades 612) plus full instructions on how to play the game.
 Ms. Fitzgerald (St. Charles, LA)offers several Powerpoint Math Jeopardy games at the middle school level...plus a template for you to create your own to fit your own needs.
Other sites with Math Jeopardy games exist, but I tried to pick the most promising. A commercial version of "Classroom Jeopardy!" exists as well, complete with an electronic scoreboard, wireless Host Remote, USB link, editor, and 3 wireless player remotes for buzzing in. The cost of Jeopardy Math Skills Game carftridges and electronic classroom edition is only $599. I wonder if my old roommate has formed a company!
As a side piece of interesting information, please consider Matt Gaffney's discussion of "How Contestants Blow Their Final Bet" on the television version of Jeopardy. An interesting use of mathematics.
Finally, as an example of how some internet searches go wild, consider Jon Hays unintelligable ranting about how algebra is "Jeopardy Mathematics."
