TY JOUR TI The Possibilities of Arithmetic of L.F. Magnitsky in Stimulating Professional Self-Development of Future Teachers KW “Arithmetic” by L.F. Magnitsky KW L.F. Magnitsky KW professional self-development KW professionally-oriented educational project KW substantive content of the project KW project product KW methodological and mathematical competence of students JO Profession-Oriented School AU Chirkova, N.I. PY 2020 IS 8 PB INFRA-M Academic Publishing LLC.