About Angela Kotsiras

MathsTeachersOnly.com was created for the benefit of all Mathematics teachers and in particular those teaching in Victoria, Australia. 

Mathematics Educator | Educational Leader | Academic Enrichment Specialist

Angela Kotsiras, founder and editor of Maths Teachers Only

Professional Background

I am an Australian educator with approximately 40 years of experience in secondary education, specialising in Mathematics teaching, curriculum development, educational leadership and academic enrichment. Throughout my career, I have held leadership positions including Head of Mathematics and Year Level Coordinator. My experience also includes VCE Mathematics assessment and advisory work.
I currently serve as Academic Extension and Enrichment Programs Coordinator at Trinity Grammar School, Kew, where I identify and facilitate academic opportunities that extend students beyond the classroom. I coordinate participation in competitions and enrichment activities, ensuring students have access to relevant resources, mentoring and support. I also explore ways to improve administrative processes through technology and automation.

Initiative and Innovation

One of my greatest strengths is recognising opportunities and turning ideas into practical initiatives. I enjoy finding solutions, improving systems and bringing people together. I established the Maths Heads of Faculty Network (MathsHOF), connecting more than 260 Mathematics leaders, and founded MathsTeachersOnly.com to support the sharing of teaching resources and professional knowledge.

Why I Created MathsTeachersOnly.com

Throughout my teaching career, I have recognised the value of sharing resources, experiences and ideas with colleagues. MathsTeachersOnly.com has been developed predominantly for Victorian secondary mathematics teachers, particularly those teaching Years 7–12 and VCE Mathematics, while also welcoming anyone interested in exploring and using the resources available. The website brings together free resources, contributions from colleagues, recommended books, teaching tools, academic competitions and links to educational organisations. My aim is to save teachers time and encourage professional collaboration.

About the Resources

The collection includes materials I have sourced alongside resources generously contributed by colleagues. Some older materials, including handwritten resources, remain valuable for teaching and learning. With advances in AI, these can now be transformed into professionally presented digital documents, allowing teachers to adapt and reuse them more easily. Teachers should check resources against current curriculum requirements and verify the accuracy of any AI-assisted conversions.

The Story Behind the Logo

I designed the MathsTeachersOnly logo myself, inspired by the idea of a hanging π symbol. The design reflects my longstanding connection with Mathematics and my desire to create a recognisable identity for the website.

The Story Behind My Pi Artwork

My interest in Mathematics extends beyond teaching and into creative design. I created geometric artwork inspired by the digits of π, originally using green and yellow tones. I later adapted the design to a more subtle grey version, which became part of the visual identity of MathsTeachersOnly.com. Visitors can also explore mathematical creativity through the Create Your Own Pi Artwork activity.
Angela’s original faded grey Pi artwork
The original grey artwork, part of the website’s visual identity.
Create your own colourful Pi artwork: blue, coral, yellow and pale-grey geometric patterns
Explore the colours and geometric patterns of π. Create your own design using genuine digits of π, experiment with variations and download your artwork.
Create Your Own Pi Artwork →

Get in Touch

I welcome suggestions, contributions and opportunities for professional collaboration. Please visit the Contact page to get in touch.