Second year ACO student Carl Yerger won a student speaker prize at the 32nd Annual SIAM Southeastern-Atlantic Section Conference (SIAM-SEAS 2008) held at the University of Central Florida on March 14 and 15, 2008. Carl was recognized for his presentation on "Six-Critical Graphs on the Klein bottle," based on joint work with fellow ACO students Nathan Chenette, Luke Postle and Noah Streib, and faculty advisor Robin Thomas.