Originally an English and History high school teacher, Dallas has extensive experience in teaching English to speakers of other languages, of all ages and for all purposes. He holds a Master of Education (Educational Psychology) from the University of Sydney, a Bachelor of Education in English and History from the University of Wollongong, and Certificate IV in Training and Assessment.

In the early 2000’s, Dallas spent eight years in Japan where he trained TESOL teachers. He also has experience with curriculum development.