

For the first time, Who Wants to Be a Mathematician employed a team format when it traveled to the University of Nevada, Las Vegasthe western site for the 33rd American Regions Mathematics League (ARML) competitionon May 30. Teams of high school students from the western part of the U.S., and from Taiwan, Hong Kong, and the Philippines participated in individual and team events as part of the nationwide ARML competition.
For Who Wants to Be a Mathematician, teams from game one were from Oregon, the San Francisco Bay area, Utah, and Washington. Teams for game two came from Colorado, the Desert Southwest, San Diego, and Southern California.
Contestants from Washington, Utah, the San Francisco Bay area, and Oregon 
Almost all the contestants from San Diego, Southern California, the Desert Southwest, and Colorado 
The teams with four people each played in front of about 250 students and coaches. On each question, one person from each team answered individually, while the other three members worked together to arrive at their own answer. After each individual signaled in (and before the correct answer and individual answers were revealed), the team signaled in. All points for correct answers counted towards the team total. For each team, the team member who answered individually rotated among the four team members, so that each team member answered two questions individually during the games.
Standing: Emily Ye (Southern California) and Lucas Brown (San Diego), seated: most of the Utah team 
The audience before the game 
Justin Yan (Washington) and Lena Sizikova (San Francisco) 
Threefourths of the Desert Southwest team 
Both games were very close. In game one, the Washington and Oregon teams fought for first place with Washington winning based on a correct answer to question six. That correct answer was the only difference between the two teams' scores. In game two, the very exuberant Colorado team battled for first with the team from Southern California. Southern California had a wrong answer on question three, but also wound up winning because of question six, when it answered correctly but Colorado didn't. The margin of victory in both games was 300 points, out of a possible total of 5400.


Then two members from each of the winning teams competed in the SquareOff Round: One question to decide which team would advance to the Bonus Round. After the questionon probabilitywas revealed, Sam Keller of the Washington team signaled in first and knew the correct answer, which earned Washington a chance at the bonus question, worth $2000.
The four members of the Washington team, Sam, Justin Yan, Qiaochu Yuan, and Joy Zhang huddled for three minutes, discussing the bonus question, which was a challenging question about trigonometry. Unfortunately, they didn't get the correct answer, but they still won a total of $2000 from their game one win and SquareOff Round victory.


Below is a list of all prizes won by the teams, and the players on those teams (in each case below, each person listed won the indicated prize, that is, no one had to split calculators, software, or books into four pieces).
The AMS thanks sponsors Texas Instruments, Maplesoft, and John Wiley and Sons for their continued generous support of Who Wants to Be a Mathematician. In this case, the sponsors were very happy to provide four times as many prizes as usual. Thanks also to ARML officials Paul Dreyer, who made local arrangements for the game, and Bryan Sullivan, and to the coaches and teams who took time out from their busy schedule that weekend to practice for the game and play Who Wants to Be a Mathematician. It wasn't easy to learn the rules for the team game in such a short time, but all the players executed the game plan flawlessly.
While in Las Vegas, Mike attended the Math Game Show Hosts convention
and learned what all the bestdressed emcees are wearing.
Photographs by Who Wants to Be a Mathematician judge and cocreator Bill Butterworth (DePaul University Department of Mathematical Sciences), Sandy Frost (managing editor of the Notices), and by Who Wants to Be a Mathematician host and AMS Public Awareness Officer Mike Breen.
Find out more about Who Wants to Be a Mathematician.