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2025國際青少年數學幾何奧林匹克挑戰賽
2025 International Youth Geometry Olympiad
2025國際青少年數學幾何奧林匹克 —— 在二維與三維之間，鍛造空間思維的試金石。從古老金字塔的神秘構築，到現代科技的數位模型，幾何，是世界共通的宇宙語言，是理解空間與形式的智慧基石。我們誠摯邀請各位數學菁英，一同參與這場以點、線、面構築的頂尖思維盛宴。
賽事分設小學組與中學組
- 小學組：平面幾何認識與初階空間想象，培養觀察、分類與基礎推理能力，建立幾何思維的堅實起點。
- 中學組：挑戰複雜的空間變換問題，圖形分析，空間折疊，面積計算等，以靜態性質分析、動態規律推演等鍛煉思維靈活性，兼具基礎與挑戰。
在這裡，平面圖形的奧秘與立體空間的變幻，將徹底激發你的空間動態想象力與嚴密邏輯推理力。
立即報名，迎接挑戰，為思考擴維！
Forging the Touchstone of Spatial Thinking between 2D and 3D. From the mysterious construction of ancient pyramids to the digital models of modern technology, geometry is the universal language of the cosmos, the cornerstone of wisdom for understanding space and form. We sincerely invite all mathematics elites to join 2025 International Youth Mathematics Geometry Olympiad, this top-tier intellectual feast built upon points, lines, and surfaces.
The competition open for Primary & Secondary students.
- Primary Division: Focuses on understanding plane geometry and developing preliminary spatial imagination, cultivating observation, classification, and basic reasoning skills to establish a solid foundation for geometric thinking.
- Secondary Division: Challenges complex spatial transformation problems, graphic analysis, spatial folding, area calculation, and more. It aims to train mental flexibility through the analysis of static properties and the deduction of dynamic laws, balancing fundamental and advanced challenges.
The mysteries of planar graphics and the transformations of three-dimensional space will thoroughly ignite your spatial dynamic imagination and rigorous logical reasoning skills. Sign up now, embrace the challenge, and expand the dimensions of your thinking!
Competition Terms
比賽條款
比賽形式 Competition Format
國際線上競賽。賽事以填空題方式進行。參賽者填寫正確選項。參賽者可使用手機或電腦參賽，建議使用電腦參賽。競賽前請仔細閱讀個人聲明，不允許切換屏幕，不得作弊或代考，誠實參賽。
The competition will be conducted in the form of fill-in-the-blank questions, where participants are required to fill in the correct number answers. Participants can take the competition using a mobile phone or a computer; however, using a computer is recommended.
Please read the Personal Statement carefully before the competition. Switching screens is not allowed, and cheating or having someone take the exam on your behalf is strictly prohibited. All participants are expected to compete with integrity.
報名方式 Registration Method
報名登記→ 線上考試 。
Submit Registration → Online Examination
報名後將收到確認郵件，參賽者需在截止日期前任何時間內，登入本會競賽入口完成考試。
Participants will receive the confirmation email after registration. Login competition system to complete exam at any time before deadline.
報名費用 Fee
賽事免費報名參與
No Registration Fee. Free Participation.
獎狀 / 獎牌 / 獎盃定制費用需另行支付
Fees for certificates/medals/trophies are excluded.
Customization fees are payable separately.
競賽組別 Competition Group
- 小學1-3年級 Primary Grades 1-3
- 小學4-6年級 Primary Grades 4-6
- 中學1-2年級 Secondary Grades 1-2
- 中學3-4年級 Secondary Grades 3-4
- 中學5-6年級 Secondary Grades 5-6
題目以難度分組，參賽者自行選擇參賽組別。
The questions are grouped by difficulty, and participants may self-select their competition category.
規則 Requirements
1.競賽時間為30分鐘，到時自動交卷，每人限作答一次。題目涵蓋學生應掌握的基本知識以及具有挑戰性的進階題目。建議參賽者合理安排時間，優先完成熟悉的題目，未解答的題目可在比賽時間結束前返回作答。參賽者可使用計算器輔助計算。
The competition duration ranges from 30 minutes, after which answers will be automatically submitted. Each participant is allowed only one attempt. Questions cover foundational knowledge students should master as well as challenging advanced topics. Participants are advised to manage their time wisely, prioritizing familiar questions first. Unanswered questions may be revisited before the time limit expires. Calculators are permitted for calculations.
2.學校排名(5名以上)將根據參賽者填報的信息進行統計。
School rankings will be calculated based on the information provided by participants (5 above).
3.比賽結果僅公佈選手名次，不另行公開具體答案、分數。賽果會透過電郵發送至登記郵箱並在官網及社交媒體公佈。
The competition results will only disclose the rankings of participants; specific scores and answers will not be released. Final results will be sent to the registered email and announced on the official website and social media platforms.
榮譽體系 Awards
按參賽者所得的分數(以該組最高得分計算)每級別各設。Each Group will establish below Awards based on participants' scores (calculated relative to the highest score within their respective group).
全場冠軍 Grand Champion
得分為組別前10%之參賽者 Top 10% of participants group
冠軍 Champion
得分為組別前11%-20%之參賽者Top 11%-20% of participants group
亞軍 Runner-up
得分為組別前 21%-30%之參賽者 Top 21%-30% of participants group
季軍 Second Runner-up
得分為組別前31%-40%之參賽者 Top 31%-40% of participants group
傑出學術教育獎 Outstanding Education Award
學校或培訓機構根據參賽者填報的信息進行統計。針對參賽學生超過5名以上之參選學校、機構或導師，按照參賽者整體水平設立 。冠軍及全場冠軍數目可得3分，亞軍數目可得2分，季軍數目可得1分，平均分占比50%。
School institutions or instructors rankings will be calculated based on participants’ registration.Schools. institutions or instructors with more than five participating students will be ranked based on the overall performance of their participants. The ranking will be calculated as follows:
-Each champion or overall champion award will count as 3 points.
-Each runner-up award will count as 2 points.
-Each third-place award will count as 1 point.
-The average score of all participants will account for 50% of the total ranking score.
獎項定制 Award Application
賽事設有榮譽獎狀(中英文)、獎杯、獎牌。Certificate (in both Chinese and English), Trophy and Medal.
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HKD 270: 電子獎狀 E-Certificate
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HKD 340: 實體獎狀 Physical Certificate
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HKD 350: 電子獎狀+實體獎狀 E-Cert & Physical Cert
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HKD 370: 實體獎狀+獎杯 Certificate & Trophy
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HKD 380: 實體獎狀+獎杯+獎牌 Certificate & Trophy & Medal
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HKD 400: 電子獎狀+實體獎狀+獎杯+獎牌 E-Cert & Certificate & Trophy & Medal
**費用已包含一次亞洲地區運費，用戶不需要額外支付運費。重新派送額外費用由用戶承擔。亞洲地區運費指中國內地，港澳台，新加坡，馬來西亞。非上述地區需收件人額外支付運費費用。
** The fee includes one-time shipping and insurance within Asia, and users do not need to pay additional shipping fees. Any Extra fees for multiple deliveries paid by recipient. Shipping within Asia refers to Mainland China, Hong Kong, Macao, Taiwan, Singapore, and Malaysia. Recipients outside the above regions need to pay additional shipping fees.