Middle aged female university teacher in glasses smiling and talking to multi ethnic group of students when asking questions during lecture
Medium shot of multi ethnic group of students raising hands to answer questions asked by smiling middle aged female professor in glasses during lecture at university
Tracking shot of middle aged curly haired male professor talking to students when sitting in lecture hall at university
Handheld shot of middle aged female professor in glasses delivering lecture to multi ethnic group of students at university
Senior professor in glasses and formal suit pointing at blackboard and writing with chalk while giving lecture in college
Middle aged female professor in glasses taking notes in notebook and talking to students when listening to their answers during lecture at university
Handheld shot of friendly male professor standing at blackboard and explaining equations written on it, then turning to students and asking questions
Young male student answering professor's question during university lecture
Professor using a chalkboard to teach a science chemistry class, asking questions and pointing to have a student answer
Handheld shot of middle eastern university professor with curly hair talking to multi ethnic group of students, who are asking questions about equations after lecture
African American professor pointing at graphs and formulas on blackboard and speaking to students while giving math lesson in university
African American professor answering question of student during lecture in university