Extension School students David Colt and Amos Lichtman strolled into Sever Hall on their way to their College Algebra class. A little early, they plunked themselves down on the wooden benches in the hallway to compare their answers to the homework assignment. Wearing jeans, running shoes, and T-shirts, they were dressed like most other Extension students. So why did their fellow students momentarily stop what they were doing and glance at David and Amos?