00573naa#a2200181#i#4500001002100000005001700021011001400038100004100052101000800093102000700101200013500108210005100243215001100294608002700305700001900332700002500351856001500376EN\INFRA-M\bibl\705420260223145855.1##a1998-0728##a20150817b2015####ek#y0engy0150####ca0#aRUS##aRU1#aContinuity in Training Primary School Students and Fifth- and Sixth-Graders on How to Solve Mathematical ProblemseJournal article1#aMoscowcINFRA-M Academic Publishing LLC.d2015##a10 с.##aJournal article2local#1aBurlakovagT. #1aTselishchevagIrina 4#anaukaru.ru