The KA220 EDU.CIRCULAR international training in Katerini, Greece from 23rd to 26th February has been an incredible step forward for the project aiming to deploy a Whole School approach by adapting Circularity Economy strategies in secondary education. This training brought together project members, teachers, and experts who engaged in co-creation activities, working collaboratively to design the first 4 lesson plans focused on circular economy principles that will be piloted in the participating schools over the next few months. This hands-on approach reflects the project’s commitment to equipping students with the skills and knowledge to navigate complex societal challenges and actively participate in the transition from linear to circular economy practices. Participants also had the opportunity to explore the first version of the XR application, designed to enhance blended learning experiences by immersing students in real-world scenarios where they can practice Circularity Thinking strategies. The Moodle platform and project website were presented, providing a dynamic space for sharing resources, connecting stakeholders, and fostering continuous learning. EDU.CIRCULAR is not just about education; it’s about transforming schools into hubs of sustainability where students, families, and communities collaboratively build a future grounded in circular practices, environmental awareness, and systemic solutions.