The primary aim of this project is to actively engage students in rich, collaborative activities with both their Slovak and national peers. This transnational partnership is designed to foster intercultural competence, enhance proficiency in English, Slovak, and Portuguese, and strengthen communication skills. The project will culminate in the co-creation of multidisciplinary educational resources, which students will deliver and adapt across a range of grade levels (1st to 9th) at the partner school, thereby consolidating essential transversal competencies. The final output, documenting this immersive week of teaching and learning, is the “Erasmus+ Teaching Portfolio: Lessons, Reflections & Experiences.”