This paper presents the European project with the title “Mediation in Teaching, Learning and Assessment” (henceforth METLA) and describes its main principles, goals and outputs. Initiated in 2020 and ended in 2022, METLA was supported by the European Centre for Modern Languages (ECML, Council of Europe) and developed two main outputs: a Teaching Guide for supporting teachers to implement mediation in different educational contexts and a databank with cross-linguistic mediation activities which are open, free, downloadable and adaptable. Both outputs draw upon the new descriptors for mediation of the Companion Volume of the Common European Framework of Reference for Languages (CEFRCV, 2020). The paper ends by discussing the main features of the METLA tasks thus emphasizing their potential to help learners develop their plurilingual and pluricultural competence.
Key words: cross-linguistic mediation, METLA, ECML, mediation tasks