Age: 41

Occupation: Eighth-grade physical science teacher at Frank N. Osborne Middle

Hometown: Hopkinsville, Ky.

Education: Bachelor's degree in speech and master's degree in communication from Western Kentucky University; master's degree in health and human performance from Austin Peay State University, where he also received his elementary and middle school teaching certification; master's degrees in recreation and leisure services and in organizational communication from Murray State University; plans to pursue a specialist's degree from Lincoln Memorial University

Teaching experience: Taught communication courses for the University of Kentucky-Hopkinsville Community College; began teaching for Gwinnett County Public Schools in 2004

Extracurricular involvement: Volunteers at the Georgia Aquarium and at Georgia Public Broadcasting; involved with the Winder Kiwanis Club

Favorite subject in high school: Journalism, where he said he learned how to become a much more effective writer.

Object that symbolizes teaching philosophy: An Albert Einstein action figure. The tenet the scientist went by is important in the classroom. "Don't be afraid to make mistakes," Nunn said. "Learn from your mistakes."