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3.14 国际数学日|石家庄两所中学解锁 π 的魅力,让数学超有趣!

  • 2026-03-19 01:53:54
3.14 国际数学日|石家庄两所中学解锁 π 的魅力,让数学超有趣!

— math —

国际数学日

国际数学日主题活动

当三月的清风遇上数字 3.14,专属数学的浪漫与探索如约而至。2019年11月26日,联合国教科文组织正式将每年3月14日定为国际数学日(IDM),这一节日由国际数学联盟发起,因与圆周率π的近似值高度契合,也被大家亲切称作“π日“。设立这一节日,远不止于纪念一个数字,它彰显数学在人类文明进程中的基石作用,更是一场关于思维、美感与合作的青春实验。

01

藁城区第七中学 

— 智趣双融,教室操场玩转 π 的魔力 —

藁城区第七中学

3月9日,藁城七中的校园里,风是轻的,光是暖的。这一天,距离“国际数学日”还有五天,但关于π的故事,已经提前在这所学校的教室里悄然展开。

01

教室里的智慧“π”对

课堂从一段穿越时空的旅程开始。屏幕上,古巴比伦的泥板、古埃及的纸莎草、祖冲之的算筹……π的足迹在历史长河中若隐若现。当讲述到“公元5世纪,祖冲之将π精确到小数点后七位”时,教室里不约而同地响起轻轻的惊叹。那一刻,数学不再是课本上的冰冷符号,而是古人智慧的回响,是今人理解的共鸣。

随后,课堂变成了“数学趣乐园”。谜题、推理、记忆挑战——π的前十位、前二十位,成了学生们口中争相背诵的“密码”。有人在数字谜底中恍然大悟,有人在图形推理里拍案叫绝。笑声、争论声、恍然大悟的“哦——”声交织在一起,仿佛一场思维的即兴演出。

左右滑动查看图片

02

操场上的活力“π”对

如果说教室是思维的训练场,那操场便是想象的延展空间。

铃声刚落,全班同学便涌向操场。他们将π从纸面搬到地面,用身体“书写”这个古老常数。不是简单的队列排列,而是一场融合空间感知与团队协作的集体创作——通过数字排队,π的前十二位在绿茵场上徐徐展开。那一刻,数字不再是抽象的符号,而是脚下的坐标,是彼此之间的默契。

数学之美,在于它的秩序与和谐;数学之用,在于它撑起了从车轮到卫星的世界;而数学之乐,则藏在每一次灵光乍现、每一次齐心协力之中。国际数学日终将过去,但π的小数点后,依然有无穷无尽的数字等待被发现。就像这群少年,他们对世界的好奇,也刚刚开始。

1

国际数学日

 No.

1

02

石家庄实验中学 

— 多维探索,解锁数学的多元美好 —

石家庄实验中学

为迎接3.14国际数学日,石家庄实验中学数学组教师李佳瑶、杨雪荧、张嘉聪等策划开展了一场以圆周率π为主题的数学科普活动。活动围绕历史溯源、生活数学、趣味互动与科技体验四个维度展开,旨在打破学生对数学“枯燥抽象”的固有印象,激发探索兴趣,感受数学的理性之美与实用价值。

01

溯古探源:千年时光里的数学智慧

活动伊始,师生共同回顾中国古代数学家的杰出贡献。南北朝时期数学家祖冲之在刘徽“割圆术”基础上,将圆内接正多边形边数推至24576边形,历经繁复运算,首次将圆周率精确到小数点后七位,得出3.1415926至3.1415927之间的数值。他所提出的约率22/7与密率355/113,领先欧洲近千年。中国邮政发行的《数学之美》特种邮票,亦将圆周率等数学经典融入方寸之间,展现数学跨越时空的永恒魅力。

02

生活寻趣:日常点滴中的数学密码

活动中,教师引导学生发现生活中隐藏的数学密码:四叶草作为三叶草基因突变的稀有产物,是概率的具象体现;花瓣数量、贝壳纹路中暗藏斐波那契数列的规律。师生还以轻松方式重新解读三角函数、平面直角坐标系、鸡兔同笼等知识点,让学生在数学谐音梗与趣味解读中,感受数学的别样温度。最后,通过观看展现中国自然山川几何结构的视频,进一步厚植家国情怀。

03

趣味闯关:互动游戏中的思维锤炼

为增强参与感,活动设置“数字炸弹”与“分级数独”两大互动环节。数字炸弹以π小数点后三位数字为谜底,学生通过推理缩小范围,猜中后需回答数学知识点方可获奖;分级数独则分别以1-4和1-6为填充范围,考验学生的逻辑思维与专注力。现场气氛热烈,学生在推理与尝试中获得成就感,数学思维在潜移默化中得到锤炼。 

SUMMARY

04

心有所感:让数学热爱在心底生根

活动最后,学生观看《火柴人vs几何》视频,在几何变换中感受数学之美。分享环节中,有学生被祖冲之的钻研精神打动,有人沉浸于数独的逻辑乐趣,也有人开始留意生活中的数学痕迹。

03

小结 

“世界上大部分事,都没有太大意义,真理和热爱除外。”

3.14国际数学日活动虽已落幕,但数学的探索之旅仍在继续。愿学生带着对数学的好奇与热爱,以更积极的心态走进数学世界,在思考中发现美,在探索中收获成长。

编辑|陈艺菲 张梓涵

供稿|张梓涵 杨雪荧

初审|陈艺菲

复审|侯雅坤

终审|周雅萱

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  1. CONNECT:[ UseTime:0.000842s ] mysql:host=127.0.0.1;port=3306;dbname=nowww460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000820s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000293s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000287s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000498s ]
  6. SELECT * FROM `set` [ RunTime:0.000203s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000589s ]
  8. SELECT * FROM `article` WHERE `id` = 485901 LIMIT 1 [ RunTime:0.000482s ]
  9. UPDATE `article` SET `lasttime` = 1773867877 WHERE `id` = 485901 [ RunTime:0.003676s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000243s ]
  11. SELECT * FROM `article` WHERE `id` < 485901 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000421s ]
  12. SELECT * FROM `article` WHERE `id` > 485901 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000423s ]
  13. SELECT * FROM `article` WHERE `id` < 485901 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.007729s ]
  14. SELECT * FROM `article` WHERE `id` < 485901 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.004197s ]
  15. SELECT * FROM `article` WHERE `id` < 485901 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.003263s ]
0.170106s