The Office of Her Royal Highness Princess Maha Chakri Sirindhorn’s Projects, an agency under Thailand’s Bureau of the Royal Household,aims to improve children’s living standards through educational programs. The goal of this project, sponsored by the Office, was to develop, test, evaluate, and recommend new and sustainable teaching techniques to improve the educational impact of the existing English as a Foreign Language curriculum in rural Thailand. We implemented and evaluated three programs: interactive teaching techniques for the classroom, a cultural exchange fair, and teacher training. We then provided recommendations to facilitate the sustainability and transferability of the programs.