CIRCLE-THON 1.0 is an eTwinning project created by teachers for students aged 14 to 20 years old. It’s built around an online hackathon exploring the circular economy and the Sustainable Development Goals (SDGs). This collaborative initiative encourages students to connect, share ideas, and develop meaningful projects addressing global challenges. Through cultural exchange, teamwork, and engaging activities like project pitching and podcast creation, we aim to inspire critical thinking, foster respect, and strengthen digital and global citizenship skills—all while having fun and making a difference!