Pomm and Timmer
James "Pomm" Pommersheim and Tim "Timmer" Marks were the original instructors of Number Theory at CTY Lancaster.
Since the early '90s, they have brought joy and laughter into the hearts of many CTYers. Their teaching style is known as the Diophantine method. They teach the class through a series of skits in which famous mathematicians illustrate examples of their discoveries. Their involvement with CTY goes back to the '80s, when they were students at St. Mary's.
Today, Timmer is a part of Staff American Pie tradition. For instance, after the line "And while Lennon read a book on Marx," the staff reply, "Tim Marks!" Pomm and Timmer, along with Tortoise and Dr. Ted, have also reached their fame outside of Number Theory with their famous Barbershop Quartet, an act they've put on at the Staff Talent Show up to and including 2005, Dr. Ted's last year. The most impressive thing about them however, is how many shirts they have from Number Theory classes past. They wear a different one nearly every day of the session.
Pomm and Timmer have not returned to Lancaster for 2008 and are unlikely to in the future.
The two, the only, Pomm and Timmer!
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A picture of the final Barbershop Quartet performance