00564naa#a2200181#i#4500001002100000003001700021005001700038011001400055100004100069101000800110102000700118200010600125210005100231215001000282608002700292700002500319856003800344EN\INFRA-M\bibl\3228/en/manage/index20250627131203.5##a1998-0744##a20140617b2014####ek#y0engy0150####ca0#aRUS##aRU1#aPlotting a Trajectory for Modern Natural and Mathematical Education at Middle SchooleJournal article1#aMoscowcINFRA-M Academic Publishing LLC.d2014##a7 с.##aJournal article2local#1aTsvetkovagMarina S.4#afht.editorum.ruu/en/manage/index