Middle aged male teacher of mathematics drinking coffee and using laptop computer at work when delivering lecture on calculus to multi ethnic group of students
Tracking shot of middle aged curly haired male professor talking to students when sitting in lecture hall at university
Male teacher with university students in lecture theatre
Teacher addressing students in a university lecture theatre
University lecture in lecture theatre, back row student POV
Teacher at lectern listening to students in lecture theatre
Male teacher in lecture theatre presenting to students
University Students Attending Campus Lecture Shot On R3D
University Students Attending Campus Lecture Shot On R3D
University Students Attending Campus Lecture Shot On R3D
Teacher presents lesson to university students, student POV
Teacher at lectern and students in lecture theatre, close up