Introduction. The article substantiates the relevance of the organization of research work of students in the school system, analyzes the methods of organizing research activities of students in a comprehensive school.

The purpose of the article — To present and substantiate the complex of optional classes developed by the author for studying the dialectal vocabulary of the Russian language in high school, to determine effective methods of extracurricular activities of schoolchildren and comment on their effectiveness.

Materials and methods. The material of the study was methods for the formation of research activities of high school students on the basis of an optional course on the study of the history of the language, as well as historical commenting on the text.

The main research methods are the analysis of scientific literature devoted to the problem of organizing students' research work; as well as diagnostic techniques, including observation, description, conversation, questioning, testing, methods of statistical data processing.

Results. As a result of the study, the expediency of studying the peculiarities of dialects of the supreme or South Great Russian dialects was proved, a complex of optional lessons in regional linguistics for senior schoolchildren was developed, effective methods of commenting on the language of works of fiction were identified.

Discussion. The article presents for discussion the question of including historical texts, including archival sources, in the system of optional classes for high school students to understand the process of historical development of the Russian language.

Conclusion. It is concluded that the use of the proposed methods for the analysis of historical texts in elective classes in the Russian language will contribute to the development of the research interest of schoolchildren and the formation of their deep knowledge of the subject.

1) studied the methodology of organizing research activities of students in a comprehensive school;

2) the degree of theoretical elaboration of the problem of the historical approach to the study of the Russian language is revealed;

3) analyzed textbooks, curricula, methodological literature for teachers and manuals for students in order to identify the practical possibility of providing a historical approach to the study of the Russian language;

4) a set of optional classes on the history of language on the basis of high school has been developed;

5) effective methods of research activity of schoolchildren are identified and justified.