我們一般都記得圓周率是3.14159，大家想必也都有挑戰過記憶圓周率Π的經歷吧？Π作為無理數，在1761年已經被德國科學家蘭伯特證明，小數點后可以一直算下去而不會重復！

We remember that the Pi is 3.14159, and maybe everyone has the experience of trying to memorize Π. As an irrational number, Π was proved by the German scientist Lambert in 1761 that it could be counted without any repetition after the decimal point!

那么，到底是什么時候，人們開始慶�！皥A周率日”這個節日的呢？其實，Pi Day起源于麻省理工學院（MIT），MIT提議要將3月14日定為圓周率日。2009年，美國眾議院正式通過這一決議。一般來說，大家從3月14日下午1點59分開始慶祝這一偉大的數學盛會。

So, when did people start to celebrate "Pi Day"? Pi Day is originated from the Massachusetts Institute of Technology (MIT). At that time, MIT proposed to set March 14th as "Pi Day." In 2009, the US House of Representatives formally passed this resolution. Generally speaking, everyone starts to celebrate this great math event at 1:59 pm on March 14th.

01
學生展示
Students' Presentations

上海美達菲源起美國美達菲Grandy，傳承了美國美達菲的各項傳統節日，并融入中國本土的特色。在這一數學盛會上，老師和同學們組織和參與了各項創意活動，表達著對STEM學科的熱愛，也通過自己獨特的方式詮釋著各自心中的數學日。

Originated from MacDuffie Granby, Shanghai MacDuffie inherited traditional festivals from the Granby campus. Moreover, it integrates Chinese features into these events. In this grand mathematics event, teachers and students organized and participated in various creative activities, expressing their love for STEM subjects, and interpreting their unique understanding of maths in different ways.

下午，數學日的慶�；顒诱�式開始。在兩位校長和學術協調員David的帶領下，同學們紛紛走上舞臺，展示自己和所屬團隊親手制作的海報，探索著數學日的由來，Π對人們生活的重要影響，展現了自己對STEM學科的興趣，也對比了中西方對Π的研究歷史。有的同學還將數學和自己所喜歡的體育運動結合起來，展現了自己獨立思考的能力以及豐富的想象力和創造力。

In the afternoon, the celebration of Math Day started. Under the leadership of the two principals and academic coordinator David, the students stood on the stage, showing posters made by themselves and their teams. These posters demonstrated the origin of Math Day, the important impact of Π on people's lives, as well as students' passion for STEM subjects. In addition, students also made a comparison of Π's research history between China and western countries. Some students even combined mathematics with their favorite sports, showing their ability to think independently, rich imagination, and creativity.

02
學生海報作品節選
Students' Posters

在活動過程中，同學們將藝術和數學巧妙地結合在一起，做出了一幅幅充滿創意的海報。下面，就讓我們一起來欣賞同學們優秀的海報作品吧！

During this activity, the students combined art and mathematics to make creative posters. Now, let us enjoy students' excellent posters together!

海報來自 G10 MEP Angel、Leo

海報來自 G10A Daisy、Lindsey

海報來自 G12 CTC 團隊

03
STEM俱樂部活動
STEM Club Activities

除了同學們的演講和海報展示之外，STEM俱樂部也舉辦了精彩紛呈的活動。在兩位外教老師的帶領下，同學們通過游戲的方式，進行了編程的學習以及機器人制作的比賽。

In addition to the presentation and poster-making activities, the STEM Club also held a series of activities. Led by two foreign teachers, the students actively engaged inconducted programming learning and robot competitions.

通過Pi Day的一系列活動，同學們不僅領略了STEM學科的魅力，更發揮了自己的想象力和創造力。數學日雖然已經結束，但同學們的學習熱情絲毫未減。接下來，就讓我們共同期待，相約來年的Pi Day！

Through these kinds of activities, students not only experienced the charm of STEM subjects, but also exerted their imagination and creativity. Although the math day has ended, the students' enthusiasm for learning has not diminished at all. Next, let us look forward to gathering together and celebrating Pi Day in the coming year!