Gregory Hine's teaching career spans 12 years.  He has taught in Australia and the United States predominantly in the areas of mathematics, science, and religious education, to middle and high school students. For the past seven years Greg has taught at Seton Catholic College, Samson. Greg has also held the pastoral position of House Coordinator at Seton for five years. Additionally, Greg has worked as an academic consultant for Academic Associates (Perth) and Pearson Education (Melbourne). He has recently written and published two revision texts for the WACE 3A/3B Mathematics course, and perennially marks TEE papers in Mathematics for the Curriculum Council.

Since 2009, Greg has worked as a sessional lecturer at Notre Dame. Greg has recently completed his doctoral studies at Notre Dame's Fremantle Campus, where he is a full-time staff member in the School of Education.

His research investigated student leadership in school-based programs, with particular attention being given to exploring how one secondary school developed leadership potential in adolescents.