A group of eleven smiling students sit on wooden steps. Two in front hold a large trophy and a Pi Day 2023 sheet with maths symbols, celebrating their mastery of the greatest numbers. Most wear navy uniforms; one wears a mask, and another a headscarf.

Pi Day 2023: Celebrating one of math’s greatest numbers

IGS honours one of the world's most recognisable mathematical symbols!

14 March marks an important day for mathematicians around the world as they celebrate Pi Day, commemorating the mathematical constant π (pronounced “pi”), which is the ratio between the circumference and diameter of any circle.

A group of students in school uniforms sit on wooden steps indoors. One girl smiles and holds a plaque with maths badges, possibly for Pi Day 2023. Some students appear engaged, while others look thoughtful or relaxed. Green plants decorate the railings.

This year, our STEM leader, Katelyn Clarke, organised a series of exciting opportunities to celebrate Pi Day across the Primary and High Schools, and the turnout was impressive.Two people communicate using sign language in front of a staircase with greenery. One holds a printed sheet and pen—perhaps discussing numbers or maths—while the other gestures. A sign reads “Amphitheatre” on the wall behind them.

Ayrton, a Year 7 student, was crowned the winner of the day after reciting an incredible 100 digits of pi, closely followed by Timo from Year 9, who recited an impressive 86 digits.

“I memorise them in groups of four numbers,” explained Timo on his technique. 

A group of students in navy uniforms collaborate with papers in hand, some seated and others standing, solving maths challenges in a modern, wooden-tiered classroom decorated with plants—celebrating Pi Day 2023 as others work in the background.

Other activities included a Pi-themed Kahoot, an experiment on Buffon’s Needle Problem, and a word game where students had to write as many words as possible starting with the letters “Pi” within 3 minutes and 14 seconds.

Two people sit on the floor next to a colourful patterned rug, closely reading and pointing at a sheet of printed maths problems. One has pink hair and a wristband; bags are visible nearby, suggesting they’re celebrating Pi Day 2023 together.

The event was a huge success, with many students actively participating in the various activities and having fun in the Bibliothèque.

Head of Mathematics Cassandra Church expressed her delight at the enthusiasm and interest shown by the students and congratulated everyone involved in making Pi Day a memorable event. 

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