Young female teacher sitting at desk, children raising their hands during a lesson, selective focus

indoors day one person incidental people adult young adult woman 30s millennial caucasian teacher kids children boys girls pre-teens pupils schoolchildren schoolboys schoolgirls school kids classmates multi-ethnic group sitting at table teaching communication smiling raising hands working knowledge youth childhood education learning school classroom lesson elementary school primary school interested attention selective focus waist up front view back view slow motion handheld