Donna con lunghi capelli castani in piedi con la schiena alla macchina fotografica scrivendo su una lavagna verde vuota pulita - Foto e immagini stock

Rear view of young female student writing on chalkboard in classroom

Rear View Of A Female Student Writing With Chalk On Green Chalkboard

A good asian teacher writing on blackboard with chalk in classroom

Rear View Of A Female Student Writing With Chalk On Green Chalkboard

Female student writing on blackboard with chalk

Young female student in maths class trying to solve a problem standing with her back to the blackboard staring thoughtfully into the air

Thoughtful young woman looking up into copyspace on a blank green chalkboard, profile view of her head

Businesswoman or teacher pondering a problem standing looking away from the camera at a blurred blackboard full of notes and calculations

Arm and hand in front of a blackboard

Portrait of happy female teacher writing on chalkboard

Closeup of empty woman's hands cupped against green board

Thoughtful female student looking at a chalkboard

Young thoughtful red-haired woman standing by blank blackboard in classroom