SDG 日历

Every September 8, the world pauses to recognise the power of the written word. International literacy day reminds us that reading and writing are not just academic skills — they are tools for…

International Youth Day falls on 12 August. Learn why the United Nations marks it, what the current theme means and how the day began, then plan with eight classroom activities for ages 6 to 18, a printable planning pack and two global Class2Class project ideas.

Every August 9, the International Day of the World’s Indigenous Peoples invites classrooms around the globe to celebrate the rich cultures, traditions, and wisdom of indigenous communities. At…

Every July 30, International Friendship Day reminds us that the people we connect with — across cultures, borders, and languages — are the heart of a more peaceful world. At Class2Class, we believe a…

Every July 20, World Chess Day unites players, teachers, and students across borders to celebrate a game that’s been bringing people together for nearly 1,500 years. At Class2Class, we believe the…

Every July 15, World Youth Skills Day celebrates the strategic importance of equipping young people with skills for employment, decent work, and entrepreneurship. At Class2Class, we believe global…

Each year on June 12, World Day Against Child Labor unites classrooms, communities, and governments behind one truth: no child should trade school, play, or safety for work. Join teachers around the…

Every June 8, World Oceans Day invites teachers and students everywhere to celebrate the life-giving role our oceans play and to take action for marine ecosystems under pressure. Through global…

Every June 5, World Environment Day invites teachers and students everywhere to take action for our planet. Through global classroom projects, your students can investigate environmental challenges…

Every May 21, the World Day for Cultural Diversity for Dialogue and Development invites teachers and students to celebrate the richness of human cultures. Through global classroom projects, your…

International Biodiversity Day invites classrooms everywhere to explore the extraordinary variety of life on our planet. Through education for sustainable development, students investigate ecosystems…

International Mother Earth Day is a call to action for classrooms everywhere. Through education for sustainable development, students explore the relationship between people and the planet…

Evaluating environmental problems in their school and deciding which solutions are most practical and impactful.

Work with international peers to investigate a shared environmental issue and co-create one actionable solution.

Every May 16, the International Day of Living Together in Peace reminds us that building understanding across cultures starts in the classroom. Discover hands-on projects that empower your students…

World Book Day is a global celebration of reading, storytelling, and the transformative power of literature. This year, connect your classroom with students around the world through collaborative…

Investigating global health challenges and the significance of World Health Day, deepening understanding through education for sustainable development.

Students from around the globe explore public health practices and challenges, develop research skills, and co-create health advocacy campaigns with international peers. A hands-on example of…

What happens when classrooms around the world unite for World Water Day? This global classroom project shows how classroom collaboration across three countries turned water conservation into a hands-on mission.

What happens when classrooms around the world unite for World Water Day? This global classroom project shows how classroom collaboration across three countries turned water conservation into a…

Students explore water-related challenges in their communities and document how water is used, conserved, or threatened.

Students explore water quality in their communities using observation, data collection, and scientific inquiry

Three teachers connected their classrooms across continents so their students could celebrate the women in science who inspire them the most. Read the full story of this inspiring global collaboration.

Students create artwork that celebrates inspiring women in their families and communities.

Students create digital stories that highlight women who inspire change in their communities.

Students create artwork celebrating the “superwomen” in their lives: mothers, teachers, grandmothers, and community leaders. By sharing their creations with peers from other countries, students…

Students analyze and produce content that represents social justice issues accurately and ethically.

This collaborative project idea engages students in exploring social justice issues through research and visual storytelling. Students from different countries will investigate local social…

In this project, students will use Design Thinking to identify and address barriers that discourage women and girls from pursuing careers in science and technology. Working with international…

Students explore and understand barriers affecting women and girls in STEM.

Asking questions and exploring how clean energy works in everyday life

Investigating renewable energy technologies and evaluating their real-world applications

Students compare, reflect on and imagine the education of the future.

This project encourages them to think like inventors—connecting clean energy concepts with everyday life while building teamwork and innovative thinking.

An interactive project where students introduce their school life to peers in other countries and explore each other’s daily routines, learning environments, and cultural experiences through…

International Clean Energy Day offers a powerful opportunity to engage students in authentic climate education through international collaboration. This article shows how teachers can design structured projects that move beyond awareness to action.

Click "Create Project" to adapt it to your classroom. Add your timeline, language level, or specific goals.

This World Teachers Day, Class2Class.org showcases inspiring educators who are transforming education through international collaboration. From Argentina to India, discover how teachers are creating global classrooms and nurturing tomorrow's global citizens.

Click "Create Project" to adapt it to your classroom. Add your timeline, language level, or specific goals.

Students will work collaboratively to identify and address issues of intolerance within their school community. Using design thinking, they’ll develop and implement innovative solutions to promote…