Three primary school children working together with construction blocks in a classroom, front view

indoors day three people boy girls pre-teens caucasian black asian ethnicity mixed race person multi-ethnic group kids children pupils schoolchildren schoolboy schoolgirls school kids standing working together teamwork learning looking down concentrating constructing communication bonding togetherness friends friendship classmates education discovery elementary school primary school classroom knowledge interested attention building blocks construction blocks educational toys instructions school uniform three quarter length close up selective focus slow motion handheld