Young child adds catalyst to colorful liquid with chemistry teachers in studio - closeup, slow motion
High School Co Op Learning Unlock Lockk
teachers wearing medical masks characters,4k video animated
High School Co Op Learning X 025 C 054 030409 001
High School Co Op Learning X 025 C 009 0304 Je 001
Africa local school student in nigeria
Asian female teacher teach with children while One teachers write on whiteboard,children sit on the chair in classroom, Multi-ethnic preschool teacher and students in classroom.Kindergarten concept.
Africa Nigeria students learns at lecture room, writing a lecture notes and listening in the classroom. Teachers teaching students
