“…Since the CLIL science teacher training is a long-term education (Kewara, 2017;Macaro et al, 2018;Mcdougald, 2016), then during the primary study of CLIL, it is necessary not only to develop an extensive teacher's vocabulary of the taught discipline but also develop the ability to explain new physics concepts in their own words, using graphical tools, relying on formulas, etc. (Airey, 2012;Hu & Gao, 2020;Kunioshi et al, 2015;Mahan, 2020;Perez, 2019;Robles & Espinet, 2013;Tarasenkova et al, 2020). The linguistic and didactic competence concept of A. I. Surygin, L. Vilkancienė, and I. Rozgienė (Vilkancienė & Rozgienė, 2017) implies not only the interaction of language and content but also the possession of existing linguistic and methodical tools and creation of their approaches.…”