College of Education and Human Development - George Mason University
Graduate School of Education - George Mason University

Our Graduate School of Education is the alma mater for one third of teachers and administrators in Northern Virginia’s world-class school systems. Each year, more than 3,000 graduate students enroll in our innovative academic programs, which include advanced study for teachers and school leaders, instructional design and technology, and a renowned PhD in Education program that is among the largest in the country.


School of Recreation, Health, and Tourism - George Mason University

The School of Recreation, Health, and Tourism (SRHT) offers exciting, career-ready majors in dynamic fields such as athletic training, tourism and events management, health and physical education, kinesiology, sport management, and recreation management. SRHT features renowned faculty, cutting-edge research, six laboratories and centers, and a diverse student body of more than 1,000 undergraduate and graduate students each year. Each major requires one or more internship or clinical experiences, ensuring that students graduate not just with a transcript but with a resume that demonstrates their professional aptitude and skills.

Contact Information

Send email to Seunghun Ok

Phone: (703) 993-4496
Fax: (703) 993-4497
Email: sok (

George Mason University
Fairfax Campus
Krug Hall 213G
4400 University Dr.
MS 1F2
Fairfax, VA 22030


Seunghun Ok is the state T/TAC Online Manager. Seunghun manages T/TAC Online, an initiative from the Virginia Department of Education serving as a statewide web-based resource for professionals helping students with disabilities. He is also a doctoral student at George Mason University (GMU). The focus of his studies is Assistive Technology.

Prior to this position, as a graduate research assistant, he participated as developer in several grant projects including Literacy AccessOnline (LAO) and National Assistive Technology Research Institute (NATRI). He also implemented the online library of GMU T/TAC. Previously he worked as special educator for adolescents and adults with mental retardation in community rehabilitation centers in Korea and also as a researcher at a research institute in Korea. Seunghun completed his undergraduate work at Seoul National University with a BS in computer science and received an MS in Special Education from Illinois State University and an M Ed. in Assistive/Special Education Technology from George Mason University.

Research Interests

  • Assistive Technology implementation
  • Technology/Innovation diffusion
  • Effective use of online survey

Recent Publications

  • Schaff, J., Ok, S., Bannan-Ritland, B., & Behrmann, M. (2005 ). Electronic Performance Support Systems , The Handbook for Special Education Technology