Mark Kleinman
Mark Kleinman, a retired U.S. Air Force lieutenant colonel and a teacher at Travis Elementary School, poses for a photo while holding a pencil with his name on it that was given to him by one of his students at Travis Air Force Base, Calif., Aug. 25. Kleinman taught Airmen how to fly a variety of aircraft during his 33-year Air Force career and now teaches math, English language arts, science and history to 4th grade students. (U.S. Air Force photo by Tech. Sgt. James Hodgman)