Enfoque selectivo de la triste colegiala sosteniendo pancarta con letras de stop bullying - Foto e imágenes de stock

Happy cute industrious child is sitting at a desk indoors. Kid is learning in class

Happy cute industrious child is sitting at a desk indoors. Kid is learning in class

Happy cute industrious child is sitting at a desk indoors. Kid is learning in class

Small girl with chemical tube. Biology education. Girl chemistry class testing tube. Scientific experiment. Fascinating lesson. Chemical reaction. Chemical liquid. Science lesson. School laboratory.

A portrait of a boy studying for scool

Thoughtful schoolgirl holding chalk and looking at blackboard with math example

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

Female teacher sitting at computer desk, holding glasses and talking in classroom

Young seductive teacher sitting at workplace with globe and laptop in classroom

Crumpled paper balls flying at frightened female teacher in classroom with chalkboard on background

Female teacher with wooden pointer holding glasses and explaining mathematical equations in classroom

Crumpled paper balls flying at frightened female teacher in classroom with chalkboard on background

Blond woman in seductive school uniform and stockings writing on empty chalkboard isolated on white

Female lecturer sitting at desk near laptop and books

Smiling female teacher with wooden pointer explaining mathematical equations in classroom