In the general framework for the development of the EU dimension multilingualism among EU citizens is essential for integration. One of the most important steps towards the development of multilingualism from a young age is to reinforce linguistic competences of teaching staff so as to encourage the development of CLIL methodology. The Galilei Institute believes that it is necessary to carry out activities that will ensure the quick acquisition of these skills in order to satisfy the current need for internationalization. The project CLIL teacher training for a European school aims to improve teachers’ linguistic communication and didactic methodological skills in order to promote the inclusion of innovative methodologies and internationalization. The two-week teacher training course will give participants the opportunity to attend a specific course to acquire CLIL methodology and improve their linguistic skills. After training the participants together with the teaching staff will develop a more advanced curriculum including CLIL methodology. The project activities will bring a stronger EU perspective and facilitate the improvement of the educational and training system through the adoption of innovative solutions offering students an up-to-date preparation.