Foto ravvicinata di pile di libri con insegnante e studente del liceo dietro - Foto e immagini stock

Selective focus of male student sitting at desk and raising hand

Back view of relaxed african american student sitting at classroom during lesson

Rear view of young students listening to teachers lecture at college

Rear view of multiethnic students listening to teachers lecture at college

Side view of smiling african american boy writing in textbook with teacher and classmates on behind

African american schoolboy writing in notebook at school

Rear view of relaxed african american student sitting at classroom during lesson

Rear view of young students sitting in classroom during lesson

Rear view of students listening to teachers lecture at college

Elevated view of african american teenage schoolboy writing in textbook and classmates on behind