Profesor de sexo masculino beber café y el uso de ordenador portátil en el aula - Foto e imagen de stock

Female university professor sitting at desk and using laptop in classroom

Female university professor in formal wear standing near chalkboard in classroom

Interior of a school class

Teacher in the classroom in fron of the blackboard. Back to school concept.

Male teacher in formal wear looking away and sitting on desk in classroom

Selective focus of male student raising hand in classroom

Selective focus of male student sitting at desk and raising hand

Female teacher sitting at computer desk, holding glasses and having headache in class

Schoolkids sitting at desks near classmate near chalkboard with class work lettering

Beautiful smiling female teacher in formal wear and glasses holding notebook in classroom

Selective focus of schoolkid with raised hand near classmates

Teacher pointing at equations in classroom with student

Selective focus of upset schoolboy standing near chalkboard and classmate with raised hand

Selective focus of upset schoolboy covering face while standing near chalkboard and classmate with raised hand

Beautiful pensive female teacher in formal wear and glasses in classroom

Selective focus of schoolgirl with raised hand near classmates