Ortweinschule Graz, Austria, is a Higher Technical College for both Engineering and Construction as well as Art and Design. It offers courses to more than 1650 students aged 14+ and adults with diverse social and cultural backgrounds. The number of students with a mother tongue other than German has increased in recent years. In some courses - especially in the department for engineering - German is already considered to be a shared language. New challenges have arisen because not all students have the same level of command.At the same time Ortweinschule puts emphasis on specific training in the area of Art and Design which enables students by means of innovative approaches and high-level qualifications to work in international contexts. In this case English serves as a lingua franca and is prerequisite to be successful when working abroad. Special needs regarding methodology and didactics of teaching in foreign languages (German, English) were identified, which should be met with the project at hand.The Ortweinschule aims at:a) Adaptation and improvement of content and language integrated learning fostering inclusion and international competitiveness of students and graduates.b) Professionalization of teachers with regard to methodology and didactics in CLILc) Reduction of the drop-out rate of students with a mother tongue other than German especially in their first year through professional approaches in dealing with challenges in a multi- and pluricultural, multi- and plurilingual context.d) Professional exchange with international colleagues; setting up and extending a European network of schools offering similar qualifications.To meet these goals, 8 teachers were selected to attend international further training and do job-shadowing in the field of CLIL (German, English) and pass on acquired knowledge, skills, and insights to their fellow colleagues at Ortweinschule. A total of approx. 200 teachers and more than 1650 students are to profit from the project through transfer, exchange, and improvement of teaching. Project results and established networks will be the basis for further Erasmus+ bids.