The pre-conference workshop of TEFLIN was held today, 12 July 2017, at 1-5pm at PLA building of FBS Universitas Negeri Yogyakarta. The workshop entitled “What are the most effective changes a teacher could make to a language course?” was presented by Paul Nation. He highlighted four significant issues for the success of a language class. This workshop is part of the 15th Asia TEFL and 64th TEFLIN International Conference hosted by Universitas Negeri Yogyakarta. The event takes place from 13 to 15 July 2017 at Royal Ambarrukmo Hotel.