Portrait of Caucasian happy male teacher in turning to camera and smiling joyfully at college. Portrait shot of man professor at Lecturer
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Caucasian young male professor in speaking to students in auditorium and explaining material. University concept. Man teacher at high school
Dolly-in shot of male Arab university professor solving complex calculus problem on blackboard, then turning towards camera and smiling
Portrait of old Caucasian bald man turning face to camera and smiling in library. Close up of male professor or cheerful worker of bibliotheca. Books shelves on background. Senior smiled teacher.
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African American young male professor in speaking to students in auditorium and explaining material. University concept. Man teacher at high
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African American male cheerful professor taking selfie photo with smartphone among multiethnic students in auditorium of University
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Portrait of African American male professor at University looking at camera and smiling. Students in auditorium on background. Man
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Portrait of young Caucasian male professor at University wearing and looking at camera. Students in auditorium on background. Man
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Portrait of African American male cheerful professor among multiethnic students in auditorium of University laughing and having fun in front
Slowmo of mid adult Caucasian male university professor helping student during final exam in bright auditorium
A group of male and female students in a large auditorium of the University listen to a lecture by a Professor
A group of male and female students in a large auditorium of the University listen to a lecture by a Professor