cropped image of smiling lecturer standing at podium tribune during seminar in conference hall
Happy student taking notes during a class at lecture hall and looking at camera.
Happy female college student during a class in lecture hall looking at camera.
Happy mature man on education training class in lecture hall looking at camera
high angle view of lecturer looking at multiethnic audience during seminar in conference hall,
Happy mature woman on education training class in lecture hall looking at camera.
smiling african american lecturer talking to audience during seminar in conference hall and pointing
College student raising her arm to answer teacher's question in lecture hall,
Exhausted university student fell asleep while preparing for an exam in lecture hall.
Male professor sitting on desk edge in empty tiered lecture hall, with wooden benches
Happy black females student during a class in lecture hall looking at camera.
Black professor giving exam papers to group of adult students in lecture hall.
selective focus of african american lecturer talking to audience during seminar in conference hall
It all comes down to the test...Two male students writing exam in a lecture hall.
female business speaker with notepad standing at white board during lecture in conference hall
Female student wearing face protective medical mask for virus protection at lecture hall
Female student wearing face protective medical mask for virus protection at lecture hall
Male student wearing face protective medical mask for virus protection at lecture hall
african american lecturer talking to audience during seminar in conference hall, participant raising
Male student wearing face protective medical mask for virus protection at lecture hall
a male caucasian person sitting and feeling tired in the lecture hall auditorium, overworking stress
cropped image of lecturer standing and gesturing at podium tribune during seminar in conference hall
Female student wearing face protective medical mask for virus protection at lecture hall
Two intercultural female students of university sitting on the first row by desk in lecture hall
Teenage female student raising hand and looking upward in lecture hall with ballpoint pen
Woman student reviewing papers in lecture hall with laptop highlighter smartwatch, copy space
a male caucasian person sitting and feeling tired in the lecture hall auditorium, overworking stress
Male student wearing face protective medical mask for virus protection at lecture hall
Writing male student taking notes in notebook at university lecture hall, with pen and smartwatch
Female instructor wearing face protective mask and helping male student at lecture hall
