Medium slowmo of multiethnic smart middle school pupils raising their hands to answer teacher questions having Chemistry lesson in modern classroom
Pupils raising hands in a high school science lesson
Chest up slowmo of African American middle school girl raising hand and asking teacher question during lesson in modern classroom
Crane shot of smiling teacher asking questions to kids in school class. Clever schoolchildren raising hands at lesson in classroom. Mixed race pupils answering questions of schoolteacher at school
Slowmo of diverse elementary age students in lab coats and protective glasses raising their hands to answer teacher question having Science lesson in modern classroom
Portrait of Korean teacher sitting on the desk with laptop in hand giving lesson for pupils. Pupils of primary school listening carefully lecture and ask important questions their teacher. Slow
Slowmo of African American male teacher of Chemistry showing glass flask to female pupils taking notes in their copybooks and asking questions sitting at desk during lesson at school
Dedicated Korean teacher giving lesson to attentive primary school students
Rear view slow motion of students sitting at desks in classroom, raising hands when male blurred teacher asking question
Korean male teacher sitting on the desk with laptop in hand giving lesson for pupils. Schoolchildren listening carefully and ask important questions their rorean teacher. Education, learning and
Pupils At Montessori School Raising Hands To Answer Question
Businessman In Presentation At Conference Raising Hand To Ask Question