Forestville Montessori School is an independent, non-denomination school operated by The Peninsula Montessori Association Ltd (PMAL), a not-for-profit company limited by guarantee of its members, which was incorporated under the Companies Act in 1980.

The Board of Directors oversees the direction of the School. The Board works with the CEO and the Leadership Team to determine the School’s strategic objectives and key strategic initiatives. The Board monitors financial performance and risk and approves key policy changes and the annual budget. The CEO reports to the Board of Governors and is responsible for all operational decisions related to the day to day management of the School and its staff and students.

The Board of Directors


Christopher Rehn – Chairperson

Christopher Rehn

Chris Rehn, BBus, DipAppSc, JP, was appointed to the role of Chief Executive of Royal Institute for Deaf and Blind Children (RIDBC) in 2010. He was previously General Manager of the Sydney Cochlear Implant Centre.

Chris, whose earlier career was in health management within the public and private sectors, has an unwavering commitment to the health, disability and not-for-profit sector.

Chris revels in bringing change to organisations to ‘do what hasn’t been done’. He enjoys the challenge of bringing together brilliant and capable professionals to harness the very best and achieve and exceed organisational goals and objectives and maximise ‘impact against mission’. He has a ‘can do’ approach and enjoys the opportunity to challenge convention in order to take an organisation and its people forward.


Nivethan Sivapalan – Director

Nivethan Sivapalan

Nivethan Sivapalan, BBus (Economics), is a Partner of Societal Consulting, servicing NSW government reform initiatives in transport, treasury and planning.

Nivethan has held various senior manager roles in Federal Government departments (Health, Foreign Affairs & Trade, Prime Ministers’ Office) and also prior advisory roles to Premiers, Ministers and the Prime Minister.


Idette Warburton – Director

Idette Warburton

Idette Warburton, BA Communications, majoring in public relations. Over the last 22 years, Idette has worked both in Australia and overseas as a learning specialist, including as a technical writer, instructional designer, project manager and senior project manager.

Idette has experience across a large number of industries including banking, retail, finance, IT, mining, government, transport, media, pharmaceutical, education, manufacturing, telecommunications, publishing and not-for-profit.

For the last 5 years Idette has been running a small business with annual turnover of $2million+ demonstrating strong operational and financial management skills.


Rose Aung Thein – Director

Rose Aung Thein

Rose Aung Thein has been a parent at Forestville Montessori School since the beginning of 2009.  Two of her children have graduated from the school after completing all levels of education at FMS, with their four younger siblings still attending currently.  Rose has been actively involved in the school community over the years, including taking on various roles such as class parent, class parent coordinator and community team member.  Rose has recently joined the PMAL Board at the AGM in November 2020.

Prior to her decision to dedicate full-time to her family, Rose worked as an economic research analyst and business consultant at an Australian firm that specialises in retail and property sectors.

Rose graduated with First Class Honours in Commerce from the University of Western Australia, specialising in International Business Economics and Management.  Her honours thesis, titled ” The Effects of Individual and School Factors on University Students’ Academic Performance”, focused on the economics of education and was published in The Australian Economic Review.

In addition to living the Montessori philosophy daily at home with the family, Rose is also formally trained in the Catechesis of the Good Shepherd, which is a Christian formation process for children aged 3 to 12 years, framed by Maria Montessori’s principles of education.  She currently volunteers her time weekly to this work.


Ian Howe

Ian Howe, BE (Electrical) has built a career in software development that includes work at Scentregroup, Channel 9 and Amadeus. He currently runs his own small business.

Ian has been a parent at FMS since 2015 and currently has 2 children attending.

Ex Officio CEO/Principal

Denice Scala

Company Secretary

Kirsti Nunn

Learn More

Under 3

Birth – 3 Years


3 – 6 Years

Lower Primary

6 – 9 Years

Upper Primary

9 – 12 Years

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