Un hombre barbudo está enseñando enérgicamente a un grupo diverso de personas en un ambiente brillante y animado en el aula.. - Foto e imagen de stock

Happy boy gesturing and chatting with classmate in school hallway, teenage students with devices

Grey haired teacher gesturing while talking to teenagers in classroom

Portrait of kids standing in elementary school hallway.

Cute smiling schoolchildren holding books while studying in library

Adorable smiling schoolchildren with books sitting together in library

Cropped shot of schoolchildren with books sitting together in library

Cropped shot of smiling librarian talking with schoolkids in library

Happy boy gesturing and chatting with classmate in school hallway, teenage students with devices

Grey haired teacher gesturing while talking to teenagers in classroom

Cheerful teacher talking to pupils on blurred foreground in classroom

Smiling teacher with digital tablet looking at camera near asian pupil with notebook

Teenage girls with gadgets talking in school corridor near blurred pupils

Cheerful african american teacher pointing with hand while talking to multiethnic kids in school corridor

Cheerful teacher with digital tablet walking along school corridor with teenagers

Positive african american teacher gesturing while talking to multicultural pupils in school hall

Positive teacher looking at schoolboy near multiethnic pupils