The article discusses the methodology of forming the teacher's readiness to use the electronic educational environment by immersion technology. The relevance of the study is determined by the challenges of our time. During the pandemic, all educational institutions of the Russian Federation had to switch to distance learning for students. Which presupposes possession of digital technologies by all participants in the educational process. To bridge the «digital divide» in the student-teacher relationship, a methodology has been developed to improve the qualifications of the teaching staff, which allows them to organize their professional activities using digital technologies. The leading method of researching this problem was a pedagogical experiment conducted among teachers and students, which made it possible to identify a positive trend in the willingness of teachers to use the capabilities of the University's electronic information and educational environment based on the results of the proposed methodology. The article clarifies the structure of a teacher's readiness to use the electronic information and educational environment of an educational organization, substantiates the effectiveness of the methodology for the formation of readiness using immersion technology.