SEMENOVA, N. 2025. SOCIAL AND PEDAGOGICAL ACTIVITY IN NATIONAL SYSTEM OF EDUCATION AT THE BEGINNING OF 20th CENTURY. Vestnik of Polotsk State University. Part E. Pedagogic Sciences. 1 (May 2025), 23-27. DOI:https://doi.org/10.52928/2070-1640-2025-43-1-23-27.