Close-up of an inspired professor lecturer explaining lesson on laptop to smart high school students
Male lecturer in white coat conducting chemistry experiments in medical classroom with students sitting at desk watching and listening
Lecturer gesticulates and speaking to audience at seminar
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African American male professor in speaking to students in auditorium and asking question. Man lecturer at high school communicating with
People sit on chairs and listen to the lecturer at the seminar
Medium shot of optimistic male lecturer sitting at desk and smiling when talking to group of students during lecture on mathematics
Intelligent students collaborate on a lecture with a professor
Medium slowmo of contemporary male university professor in smart casualwear walking along rows in big lecture hall helping students during seminar or test
African-American private English lecturer professor delivers lecture to students at distant lesson via laptop computer at table in living room slow motion
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African American male lecturer helping guy student to test during exam. Lecturer speaking wih students and answering questions. Testing
Lecturer shows presentation on screen for listeners at agricultural seminar
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African American man professor walking the during examination and helping guy student to test. Lecturer communicating wih students and