happy senior lecturer holding paper plane in hand
pensive grey hair professor standing at blackboard with piece of chalk
Lecture at university lecture theatre, audience POV
senior lecturer leaning on wooden tribune in classroom
Man lectures students in lecture theatre, mid row seat POV
grey hair professor showing fist to students
grey hair professor working with laptop
senior lecturer biting eyeglasses isolated on white
grey hair professor leaning on table and walking stick
back view of senior lecturer writing something on blackboard with piece of chalk
senior lecturer holding piece of chalk and looking away
grey hair professor pointing on something at blackboard with wooden pointer
Man lectures students in lecture theatre, front row seat POV
cropped image of senior lecturer writing something in notebook
bored african american student sitting at desk during lesson
Students sit facing camera in a modern university classroom
grey hair professor looking at laptop
Video projector
grey hair professor pointing on something at blackboard
smiling african american student talking to classmate during lesson with blurred teacher on
smiling grey hair professor holding wooden pointer
grey hair professor pointing on something with wooden pointer
pensive senior lecturer standing with pencil isolated on white
grey hair professor holding book and pointing on something at blackboard
happy senior lecturer buttoning shirt
cropped image of thoughtful senior lecturer sitting at table with pencil and notebook
smiling grey hair professor holding piece of chalk
Students in university atrium, three in foreground close up
grey hair professor talking by smartphone and looking at camera
Female student taking notes in a university lecture theatre
