Over the years, Professor Ginn's teaching areas have included: law and religion, property law, administrative law, alternative dispute resolution, public law, health law, and women and the law. With Professor David Blaikie, she has also developed and taught courses in law at Hue University, Hue City, Vietnam and the Atlantic School of Theology, Halifax, Nova Scotia. Professor Ginn has acted as a coach and examiner in the Negotiations and Conflict Management Programme at Dalhousie, and facilitated seminars on conflict resolution in a variety of settings. In 2016-17, while on sabbatical, Professor Ginn held the Simon Visiting Fellowship at the School of Law, University of Manchester, in the U.K.

Professor Ginn's research and writing interests cover a range of topics, including religion and the law, administrative law, aboriginal title, and property law, health care issues and gender issues.