This week, the Senior School hosted a Mathematics Week themed "Circles and π." Appropriately, it took place in the week leading up to International Mathematics Day (14 March), also known as Pi Day, bringing pupils an engaging and knowledge-filled celebration of mathematics.

The week began with a whole-school assembly on Monday. Teachers introduced the origins of Pi Day and the history of exploring π. A lively "Lucky Wheel" activity followed, randomly selecting pupils to come on stage and tackle mathematical challenges, quickly raising the excitement in the hall.

One of the most popular activities was "Can You Draw a Perfect Circle?" Pupils were invited to attempt drawing a circle freehand while the screen displayed, in real time, how close their drawing was to a perfect circle. Cheers and laughter filled the hall as everyone experienced the fun side of mathematics.

During mathematics lessons, pupils stepped beyond the traditional classroom to conduct a hands-on π investigation experiment. Working in groups, they searched the campus for circular objects such as flowerbeds, manhole covers and decorative structures. Using flexible tape measures, they carefully measured each object's circumference and diameter.

By calculating the ratio between circumference and diameter, each group obtained its own approximation of π. Under the teacher's guidance, pupils then engaged in thoughtful discussions about sources of experimental error: the resolution of measuring tools, the control of tension when measuring, and the degree of deformation in real circular objects.

Some pupils even suggested ways to improve accuracy, such as taking multiple measurements and calculating the average, using more precise measuring instruments, or selecting more perfectly circular objects. Through this process of rigorous enquiry, pupils not only gained an intuitive understanding of the mathematical meaning of π, but also strengthened their experimental design skills and critical thinking.

Beyond the investigation activities, pupils also took part in the exciting π Memory Challenge, competing to see who could recite the most digits of π. Some pupils managed to reach 30 decimal places, demonstrating both remarkable memory and genuine enthusiasm for mathematics.

In addition, pupils explored the online geometric construction game Euclidea, using educational technology to develop their interest in mathematics while practising problem-solving from multiple perspectives.

During the creative session, each pupil received a paper plate and used compasses and protractors to create their own circular artworks. By analysing the circular structures found in the logos of companies such as Apple and Twitter, pupils also discovered how geometric principles are applied in design.

Through this wide range of engaging activities, Mathematics Week allowed pupils to experience the beauty and excitement of mathematics through hands-on exploration. We look forward to even more inspiring discoveries in next year's Mathematics Week.