TY JOUR TI Problem-activity game as a method of teaching adults to collectively identify and resolving professional problems: theoretical & technological foundations KW problem-activity game KW productive business games KW andragogy KW non-formal education KW collective thought activity KW active learning methods KW game design KW moderation KW edutainment JO Journal of Pedagogical Studies AU Khasyanov, D.A. AU Vorovschikov, S.G. PY 2026 IS 11 PB INFRA-M Academic Publishing LLC.