

Close-up low angle view of a researcher analyzing sprouts in petri dish at the laboratory


Elegant young teacher checks the attendance list during additional workshops at school
by bialasiewicz


Beautiful thoughtful teenage girl sits on the side of a class during lesson at school
by bialasiewicz


Elegant teacher stands with a black pad and explains something to a group of teenagers
by bialasiewicz


Teenagers sit in a circle on the floor and prepare a project for math classes together
by bialasiewicz