00511naa#a2200169#i#4500001002100000005001700021011001400038100004100052101000800093102000700101200010600108210005100214215001000265608002700275700002500302856001400327EN\INFRA-M\bibl\322820240703141747.3##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#azh-szf.ru