Studente appoggiato alla lavagna e guardando seriamente a scuola - Foto e immagini stock

Young thoughtful beautiful woman standing against blackboard

Thoughtful female student leaning against blackboard in school

Portrait of a young girl student on the background of green blackboard

Sexy coquettish young woman in glasses throwing a flirtatious glance towards the right of the frame

Thoughtful female professor looking away with thought bubble on chalkboard

Young girl with question mark on a gray background .

Young blond woman holding out her empty palms against chalkboard

Looking up female with glasses over the green board background

Young female student displaying invisible product against chalkboard in classroom

Young female college student with a problem leaning her head on her hand staring up thoughtfully into the the air with a pile of crumpled paper in front of her as she tries to find the answer

Attractive young university student sitting thinking with a closed laptop on the desk in front of her as she stares up into the air

Depressed young female student sitting staring at her notes with her head on her hand in front of a blackboard

Thoughtful playful woman with a pencil moustache and glasses standing against a green background looking upwards with a pensive expression

Side view of thoughtful young female teacher with hand on chin against chalkboard

Thoughtful female student looking up against chalkboard in classroom