00559naa#a2200181#i#450# EN\INFRA-M\bibl\86657 20241223190129.1 2500-3305 20240824b2024####ek#y0engy0150####ca RU Current problems of developing digital educational content in physics grades 7-8 Journal article Moscow INFRA-M Academic Publishing LLC. 2024 7 с. Journal article local физики. 372.853 Titov R. O. Titova Elena Nikolaevna zh-szf.ru