High angle shot of modern professor entering lecture hall, greeting students and starting lesson
Middle aged curly haired teacher entering lecture hall, greeting multi ethnic group of students and starting lecture on calculus at university
Tracking shot of group of multi ethnic students sitting in lecture hall at university and listening to professor, one of them asking question
Handheld shot of group of multi ethnic students sitting in lecture hall at university, one of them smiling and talking to professor
Long shot of ethnically diverse college students entering lecture hall and greeting their teacher
Group of multi-ethnic college or university students wearing protective masks sitting at desks in lecture hall listening to professor and taking notes
Multi ethnic group of university students standing talking to unrecognizable professor when standing in lecture hall
Diverse students in lecture hall writing in copybooks
Diverse students attentively listening to female professor in lecture hall, one raising hand to ask question
Tracking shot of student discussing topic with professor and diverse group
Tracking slowmo shot of modern male professor giving lesson to multi-ethnic group of university students sitting on stairs outside lecture hall taking notes in copybooks
Lecture hall is full with medical students, professor is giving a lecture.