During the first term, 3rd grade students participated in an engaging mini-project in which they designed and built models of a sustainable school and city using nets and 3D shapes. Through this hands-on learning experience, students explored the concept of sustainability while making meaningful connections across different subjects. This activity was developed in alignment with the school’s Eco-Schools program, backed by the Science Department, and supported the ongoing CAS EcoHeroes transversal project.

The main purpose of the project was twofold: to strengthen students’ understanding of 3D shape nets and their properties in Mathematics, and to raise awareness about environmental responsibility through sustainable design. By imagining and constructing eco-friendly cities and schools, students were able to apply geometry in a real-world context while reinforcing values such as environmental care, collaboration, and innovation—as true EcoHeroes in action.