#6550708Moscow School No. 315. Chemistry teacher Lyubov Pontak and a student conducting an experiment during class.Sign in or register,to downloadAdd to cartRemove from cartCategories: Labour, EducationLocation: Moscow, RussiaEvent date: 14.11.1986Date published: 21.05.2021Author: Oleg LastochkinCredit: SputnikOriginal: 86-13540, 35 mm filmMedia: JPEG, 5388x3544px, 9.1Mbstudenthigh school studentstandchemistrytestexperimentequipmentlab worklaboratoryvileflaskschool uniformschoolinnovative teacherlessonsecondarysovietcooperationteacherstudyeducationmoscowmathclassroomclasssoviet unionussr1980s