Tara Dunstall

Deputy Principal, Head of Senior School

BA, LLB (Hons), GradDipLegPrac, GradDipEd

Tara joined CGGS in 2008 to teach legal studies after a career as a Senior Solicitor with the Australian Government Solicitor. In her time at CGGS, Tara has also taught business, commerce and geography. After a brief stint teaching business law at the Canberra Institute of Technology and communications at the Australian Defence Force Academy, Tara returned to CGGS and was appointed the Head of the Geography and Social Sciences Faculty in 2012. Tara acted as Director of Curriculum from April 2015 until she was appointed Director of Studies in October 2015.

Nancy Lee

Director (Academic Administration)


Nancy joined CGGS in 2009 as a Mathematics teacher, and has held the position of Head of Mathematics for several years before joining the Senior Management Team. She had an early career as a computer programmer for a major pharmaceutical company and then transitioned to secondary mathematics teaching. Before her arrival at CGGS she spent 10 years teaching Mathematics at a public high school in the USA, taking on the role of IB coordinator and department head. Her academic qualifications include a Bachelor of Science with a Minor in Mathematics from Penn State University and a Masters of Education from University of Colorado at Boulder.

Joel Copeland

Director (Co-curricular)

MEd (Educational Leadership), BEd (Secondary Music), Ad Dip (Leadership & Management), MACEL

Joel joined CGGS in 2016 as the Dean of Music and lead the establishment of the Music Academy. Prior to this, he was employed at Radford College where he was the Head of Music and Director of Choirs. Joel has experience teaching students from Pre-Kindergarten through to Year 12 as well as adult learners in a community setting and in 2021, was certified by the Teacher Quality Institute as a Lead Teacher. Joel is a regular presenter at conferences and workshops around the country and is an accredited Australian Kodály Certificate lecturer. Joel’s experience in leadership and governance extended to his role as a Director of the Radford College Board in 2016.

Lindy Braithwaite

Director (Studies)

BEd (Secondary) Economics & Law

Lindy joined CGGS in 2023 as the Director (Studies), having lead another PK-12 Independent School through seven years of outstanding academic results and the authorisation and implementation of the IB Diploma Programme. Originally from South Australia, she has taught Legal Studies and Business Management in several jurisdictions, including three years at the British (International) School in the Philippines while on a posting with her family. Lindy has had key roles in cross sector Curriculum and Assessment development including ACARA, BSSS, SSABSA, NTBOS and a project with ANU to develop an extension course for senior students. As a lifelong learner, she is currently working towards her Masters of Business Administration. Lindy loves being in the classroom and supporting young people to find and pursue their passions. She is committed to the education of the whole child and implementing strategies to enable teachers to really know their students.

Skye Tyler

Director (Students)

BA, MTeach, MCYS, PhD Candidate

Skye joined CGGS in 2018 as a Humanities teacher and Head of Deakin House. Prior to this she was a Head of House at Santa Sabina College in Sydney. She holds a Master of Teaching and a Master of Childhood and Youth Studies. Skye is passionate about a holistic approach to learning and is currently in the final stages of her PhD, which has explored the role care practices play in the successful implementation of a whole school approach to student wellbeing. She commenced in the role of Director (Students) in 2020.