The introduction of digital technologies into the educational process has become an integral part of modern education. The organization of a mixed format requires a basic learning process, supplemented by various digital resources for both face-to-face and online learning. At the same time, it becomes urgent to ensure high quality and accessibility of education at all levels through the creation of a modern and safe digital educational environment. The various problems encountered in the creation of such content have prompted the educational community as a whole and individual teachers to develop the technical, technological, didactic and pedagogical aspects of distance education. According to the authors of the article, courses developed without the appropriate scientific justification will not be in full demand, because they are mainly informational and are not aimed at the formation of the necessary skills of students. Questions of scientifically based design of online courses are very relevant. The authors developed a number of online courses, which are introduced into the educational process and are actively used by teachers in various formats. The article considers various options of using online courses in work with students. © 2025 Elsevier B.V., All rights reserved.