Every year on the 14th of March, people from all over the world unite to celebrate the International Day of Mathematics. It is a day to observe how math is used to influence the field of science, technology, and our everyday lives. It is celebrated since the year 2020. It is a day to encourage students and the general public to get engaged with the subject of math.

The day is coordinated internationally by UNESCO and the International Mathematical Union (IMU), with participation from schools, universities, museums and community institutions across countries.

Why International Mathematics Day matters

International Mathematics Day is all about putting the spotlight on how math relates to the world we live in today. It’s about the latest research and technology, and even the decisions we make in our daily lives.

The day also seeks to generate more interest in the subject among students. It does so by offering hands-on, game-based, and collaborative learning opportunities that encourage students to see how math relates to their real-life world.

Schools often organise classroom events, while global institutions host webinars, exhibitions and interactive programmes that highlight the practical importance of mathematical thinking.

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International Mathematics Day 2026 theme

The theme for International Mathematics Day 2026 is “Mathematics and Hope.”

According to the International Mathematical Union, the theme for the day reflects the notion that Mathematics, just as hope, is a universal human resource, a common possession of people everywhere.

Ancient Greek philosopher Thales of Miletus once remarked that hope, of all human possessions, the universal and the only permanent, never departs from man nor leaves him, nor does it forsake the virtues and the good.

To mark the occasion, UNESCO, the International Mathematical Union and IMAGINARY organised a global webinar titled “Mathematics and Hope” on March 13, 2026.

Classroom activities and learning exercises

To assist educators in celebrating the day, the International Mathematical Union has proposed various activities that can be carried out in the classroom to show the application of Mathematics in real life.

One such activity is Group Screening, which shows the application of Mathematics in the improvement of the efficiency of the testing process. The activity involves the testing of samples of various individuals as a group. If the results of the test are negative, then all the individuals are considered negative. If the results are positive, further tests are carried out in smaller groups.

The method of testing in groups is known as pooled testing and was first used by the United States Army in the screening of recruits for syphilis during World War II.

In the classroom activity, the students are grouped and asked to identify the infected people in the group after a series of tests. They then compare the strategies to see which method required the least number of tests.

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Themes from previous years

Each year the celebration focuses on a new theme that encourages creative participation.

In 2020, the first celebration highlighted the idea that “Mathematics is Everywhere,” inviting students to create short videos showing how the subject appears in science, nature and daily activities.

The 2021 edition asked students to design posters using Mathematics to imagine ways to improve the world. In 2022, participants captured photographs that showed Mathematics in everyday surroundings.

Students created mathematics-inspired comics in 2023. The 2024 theme introduced “Math Remixes,” encouraging participants to integrate mathematical ideas into everyday objects and places. The 2025 challenge focused on creating “Math You Can Touch.”

History of the observance

The International Day of Mathematics was officially proclaimed by UNESCO. The proposal was adopted by UNESCO’s Executive Council during its 205th session and later approved at the organisation’s 40th General Conference in November 2019.

Since then, the day has grown into a global event that promotes curiosity, creativity and appreciation for Mathematics among people of all ages.