The primary objective of "MA(R)TH - MATH, MUSIC AND ART WILL KEEP YOU SMART" project is to use the interdisciplinary approach and connect Math (a subject with generally lower students' motivation) with Music and Art (subjects with generally higher students' motivation) to enhance their key competences in those fields. The second objective is to strengthen teachers' profile and raise the level of their professional competences so as to develop innovative teaching methods, take initiative in leadership in education and build capacity to work in transnational projects. Through cooperation with local institutions teachers are to strengthen their own and their students' civic awareness. The third objective is to include ICT knowledge and the working language of the project - English - in project activities so that both students and teachers also increase their digital, linguistic and communication competence.