
The Arbor School, Dubai
Principal & Leadership Team
Last updated
Leadership & Governance
The Arbor School is operated by Praxis Education, founded by Dr. Saad Al Omari (CEO) and Dr. Pirin Erdoğdu (Deputy Director of Education). The school's governing body includes dedicated education, sustainability, and wellbeing committees — a structure the KHDA rated governance Very Good in its 2023–2024 inspection, with inspectors noting that governors are well informed and actively support school improvement. The Executive Board's provision of staff, facilities and resources was singled out as a highlight, rated management, staffing, facilities and resources Outstanding — the highest possible grade in that category.
Principal Gemma Thornley, who joined Arbor in August 2024, brings considerable credentials to the role. Originally from Hertfordshire, she holds an MSc in Educational Leadership from the University of Leicester, the National Professional Qualification for Headship (NPQH), and is a Fellow of the Chartered College of Teaching (FCCT). She is currently pursuing a PhD at the University of Buckingham focused on global teacher recruitment and retention. Her appointment follows the tenure of the previous principal recorded at the time of the 2023–2024 KHDA inspection, meaning parents should note that the current leadership team is relatively newly assembled. Head of Secondary Thomas Moriarty joined in March 2025, Head of Primary Kathryn Keeshan brings experience leading two Outstanding-rated schools in Dubai, and Head of Thrive Rachel Green Smith has twelve years in Dubai building the school's nationally recognised inclusion programme. The depth of experience across the senior team is a meaningful stabilising factor despite the recent principal transition.
The KHDA rated leadership effectiveness Very Good and parents and community Very Good in 2023–2024, with inspectors describing parent partnerships as very positive and noting that parents are well informed of academic progress and school events. Arbor's parent engagement infrastructure is notably active: the Friends of Arbor parent group, a Class Champions volunteer programme, ArborTalks information sessions, coffee mornings, annual surveys, and communication via the Zenda and Seesaw platforms all reflect a leadership team that treats family involvement as central to school life rather than peripheral.
With 89 teachers serving 1,229 students, Arbor's implied student-to-teacher ratio is approximately 1:13.8 — broadly in line with the Dubai city average of 1:13.6 across all schools with available ratio data. The school also employs 56 teaching assistants and 4 guidance counsellors, which meaningfully supplements classroom support, particularly for the 109 students of determination enrolled. [MISSING: staff qualification percentage data — percentage holding Masters or above not published in available sources.] The KHDA inspection noted that staff morale is high and that leaders actively review work-life balance, both positive signals for retention, though no specific turnover figures are published.
The school's most significant external validation came in April 2025, when a BSO inspection awarded Arbor an Outstanding rating — a result that supersedes the KHDA's Good overall grade from 2023–2024 and reflects the trajectory inspectors had already identified. Arbor is also a winner of the World's Best School Prize for Environmental Action, an internationally recognised distinction that speaks directly to the school's ecological mission. The leadership vision — encapsulated in the phrase "enough for all, forever" — is not merely aspirational language; inspectors confirmed that the clarity of purpose drives every aspect of school life, from curriculum design to student council initiatives promoting bio-fuel use in school transport.