The eTwinning project “Volunteens Reasearchers in…STEMLand” aimed to introduce STEM activities in the educational praxis by enhancing learning via Science, Technology, Mathematics and Engineering (STEM) without theories and unnecessary terminology, and through analytical and problem-solving methods. At the same time, this project enabled the development of innovation skills, algorithmic & programming standards and team spirit demonstration. In parallel with language skills development, participants researched how STEM implementation may help everyday life and discovered how they can support in volunteering based actions. Teens as Researchers observed, designed and delivered questionnaires related to issues of the project and took interviews in order to triangulate the results of their research and evaluate their process. The founders of the project were: Peiramatiko Scholeio Panepistimiou Thessalonikis, Greece (Experimental School of the Aristotle University of Thessaloniki, GREECE) And ISIS "M. Rapisardi", ITALY and the partners” IISS PERTINI ANELLI, Bari, ITALY & BAŞKENT ÜNİVERSİTESİ ÖZEL BAŞKENT LİSESİ, TURKEY & 2nd Lyceum School of Chania, Greece