 The aim of this paper was to explore the potential of informatics lessons for the development of separate components of multilingual and mathematical competencies in the context of teaching programming basics with the use of remote technologies. The authors conducted a survey of the literature on the structure and content of key competencies and the potential of informatics lessons for the development of separate components of multilingual and mathematical competency. They also investigated the content and methods of teaching programming basics in 7th to 11th grades. Finally, they developed an e-learning middle course using Python for programming basics on the principles of an integrated approach to developing separate components of multilingual and mathematical competencies. This article was authored by Svitlana V. Shokoliak, Yelizaveta Yubohanenko, Irina V. Lovinova, and others.