00528naa#a2200169#i#450# EN\INFRA-M\bibl\5048 20240914095851.6 1998-1740 20150116b2015####ek#y0engy0150####ca RUS RU Problems of Standardization and Designing Instruments of Mathematics Teachers’ Professional Activities Journal article Moscow INFRA-M Academic Publishing LLC. 2015 15 с. Journal article local Monakhov V. M. naukaru.ru