 After his graduation from the university, Ivan Yakovlev worked as an inspector of Chuvash schools in the Kazan School District (until 1903) and headed the Chuvash School for Teachers (until October 1919).Ivan Yakovlev contributed to the establishing of Chuvash and other national schools in the Volga region.He was the one to create special instruction methods based on Konstantin Ushinsky’s pedagogical legacy.