ECO-STEAM4BASICS aims to strengthen the foundational skills of children aged 3 to 12 by integrating outdoor, inclusive STEAM learning into primary school and early childhood curricula. Blending experiential outdoor learning and STEAM exploration, the project develops skills in reading, writing, numeracy, digital literacies, and an early interest in science, through co-designed pedagogy, large-scale teacher professional development, and pilot implementation across 8 countries.