Profesor insatisfecho mirando a estudiante que habla en el teléfono inteligente en el aula - Foto e imagen de stock

Teacher standing near chalkboard and speaking with student who talking on smartphone

Selective focus of teacher showing something to student

Teacher pointing at equations in classroom with student

Female teacher sitting at desk and pointing at something in classroom

Female teacher sitting at desk near laptop while student standing near chalkboard

Female teacher and male student during exam in classroom

Female lecturer standing in glasses and showing equations near student

Female professor pointing at chalkboard with equations during lesson

Selective focus of schoolgirl with raised hand near classmates

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

Selective focus of schoolkgirl standing near chalkboard with class work lettering and classmates with raised hands

Cruel schoolkid pointing with finger and laughing near bullied schoolgirl standing in classroom

Selective focus of schoolkid standing near chalkboard with class work lettering and classmates with raised hands

Selective focus of schoolkid with raised hand near classmates

Selective focus of classmates pointing with fingers at frustrated schoolboy covering face, bullying concept

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

Selective focus of bullied schoolgirl talking on smartphone near cruel schoolkids in classroom