Vista posteriore dello studente che ascolta musica con cuffie sulla lezione - Foto e immagini stock

Back view of student listening music with headphones on lecture and looking away

Young students greeting each other in classroom

Pleased with the work. Happy maths teacher smiling to her class standing in front of them with the book at the lesson.

Selective focus of male student sitting at desk and raising hand

Rear view of multiethnic students listening to teachers lecture at college

Group of kids raising hands in class to answer teachers question

Rear view of young students listening to teachers lecture at college

Rear view of schoolgirl writing on chalk board and classmates with teacher sitting in classroom

Rear view of african american boy with arm up in classroom with teacher and classmates

Rear view of schoolchildren and teacher writing on white board

Schoolchildren standing around teacher at classroom with desks on foreground

High school students raising hands to answer teachers question

Rear view of schoolgirl raising hand to answer teachers question during lesson