Happy young female teacher reading and talking to children in an infant school class, close up

indoors day three people incidental people part of person adult young adult woman 20s millennial black caucasian mixed race person multi-ethnic group teacher kids children pupils schoolchildren classmates happy smiling excited sitting learning teaching reading working listening talking raising hands childhood education communication school classroom lesson nursery school infant school kindergarten concentrating interested attention group learning over shoulder view head and shoulders selective focus close up slow motion handheld