00644naa#a2200181#i#450# EN\\bibl\114720 20260408094336.3 2712-7516 20260121b2026####ek#y0engy0150####ca RU Integration of game techniques into the learning process of physics and mathematics as a factor in increasing academic motivation and olympiad activity of students Journal article Moscow ITBO University 2026 0 с. Journal article local математики. 372.851 Klochko Kristina Pavlovna Haliullina Regina El'darovna zhpi.ru