Φιλικός και σίγουρος απόφοιτος φοιτητής που στέκεται κρατώντας ένα φάκελο με σημειώσεις κλάσης με την πλάτη του σε έναν λευκό μαυροπίνακα με χώρο αντιγραφής - Φωτογραφίες & Εικόνες Αρχείου

Smiling confident male teacher with folded arms leaning against a blank green chalkboard looking at the camera with a smile

Friendly young male lecturer or teacher standing with folded arms in front of a blank green chalkboard with copy space

Smiling teacher listening to a student as he turns back from the blackboard with a piece of chalk in his hand, blank green copy space

Happy relaxed male teacher in a classroom standing leaning against a blank clean chalkboard with folded arms and a friendly smile

Teacher gesturing to a pupil in the classroom with a smile as he turns from writing on a blank green blackboard with chalk in his hands

Smiling confident teacher or businessman standing in front of a chalkboard clasping a file in his arms smiling at the start of a presentation

Young man standing teaching at a blackboard in a classroom with the aid of a handheld tablet computer looking up at the camera with a distracted smile

Happy friendly young teacher or pst graduate male student standing holding a tablet in front of a blank chalkboard

Relaxed male teacher leaning against blackboard

Confident smart male teacher or professor standing in front of a blank chalkboard in a classroom clutching a folder of notes to his chest

Friendly male teacher turning to smile

Male thoughtful teacher checking examination papers at bench in classroom

Portrait of happy young male professor writing on chalkboard while looking over shoulder

Male teacher taking a question from the class

Thoughtful middle-aged male teacher sitting leaning his elbows on a desk in the classroom watching something to the side

Portrait of young bearded teacher standing against blackboard in classroom

Portrait of confident young male student wearing eyeglasses against chalkboard

Portrait of a serious young man sitting with folder in front of chalkboard

Portrait of happy male professor with arms crossed sitting on desk in classroom