00643naa#a2200181#i#4500001002200000005001700022011001400039100004100053101000800094102000700102200011600109210005100225215001000276608002700286675011300313700002000426856001500446EN\INFRA-M\bibl\1569920240714042715.7##a2306-1731##a20170328b2017####ek#y0engy0150####ca0#aRUS##aRU1#aThe Core of the Activity Concept of Extend Didactic Unit (EDU) Technology in Teaching GeometryeJournal article1#aMoscowcINFRA-M Academic Publishing LLC.d2017##a5 с.##aJournal article2local##aОбразование. Воспитание. Обучение. Организация досуга. 37zRUS#1aUlyanovagI. V.4#anaukaru.ru