00522naa#a2200169#i#4500001001500000005001700015011001400032100004100046102000700087200007700094210004600171215001000217608002700227700003800254700003400292856002600326EN\\bibl\9919420250715071209.2##a2542-1840##a20250527b2025####ek#y0engy0150####ca##aRU1#aDesign and Research Activities in Mathematics EducationeJournal article1#aKemerovocKemerovo State Universityd2025##a9 с.##aJournal article2local#1aEvstifeevagTat'yana Valentinovna#1aStacenkogAnastasiya Igorevna4#avestnik-pses.kemsu.ru