Male professor sketching on a whiteboard to explain the topic. Many attentive university students listening to a lecturer in a classroom.
A man talking on the stage giving a lecture to the audience holding a microphone
Students Engage in College Studies
Medium shot of female Caucasian woman standing in front of class holding tablet in hands and giving lecture on programming showing example on screen projection
Young Man Coach Conducting Online Lecture. Professional Male in Headsets, Engaging with Business Partners via Webcam
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Portrait of african american lecturer holding monologue using microphone, gesturing with hands, studio background. Expressive BIPOC speaker
Business Conference Stage: Tech Startup CEO Presents New Product, Holding Laptop, Does Motivational Talk, and Lecture about Science
Business Conference Stage: Tech Startup CEO Presents New Product, Holding Laptop, Does Motivational Talk, and Lecture about Science
Front View of Confident Doctor holding Lecture Webinar sitting at Clinic Office. Medical Male Talking to the Camera, Video Conference. Wearing Eyeglasses, white Uniform. Stethoscope. Medicine.
Successful professional biracial speaker holding educational lecture.
Young adult businessman giving investment lecture with microphone and tablet
Tracking in of diverse college students sitting at desks in classroom, writing summary on chemistry lecture, professor holding beamer with purple liquid
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Portrait of african american lecturer holding monologue using microphone, gesturing with hands, studio background. Expressive BIPOC speaker
Unrecognizable lecturer holding remote controller from display with presentation talking in front of audience
Business Conference Stage: Tech Startup CEO Presents New Product, Holding Laptop, Does Motivational Talk, and Lecture about Science
View from behind of a large mixed ethnicity group of people in a classroom, listening as their lector holds a lecture. Stock. People puts up
Woman student sit at desk and look at laptop computer screen, listen to lecture class lesson Spbas. Attentive university woman hold pen e-learning, read information, watch video for exam
A young programmer holds an online meeting with colleagues. Energetic friendly teacher tells students a new lecture
Charming confident experienced blond female mentor of company holding business lecture for mixed race motivated coworkes in training room in modern office
Close-up shot of a woman's hand, holding a blue marker near a drawing on a white presentation board during a lecture.
A young man studying alone in a peaceful park, reading and reflecting by a pond
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Cheerful book club president holds message urging people to join them, talking about importance of lecture, studio background. Smiling woman
Inspirational speech: Young man shares wisdom with passion. Portrait of speaker holding tablet against neutral background.
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Medium arc shot of Asian female university student in headphones sitting at desk with computer in library, watching online lecture, listening to male professor and holding textbook on machine learning
Medium shot of male African American teacher standing in front of blackboard holding tablet and explaining diagram on screen during lecture in school at daytime
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Woman holding message in hands urging people to read more, talking about importance of lecture, isolated over studio background. Bookworm
27 MARCH 2019. KAZAN, RUSSIA: A woman talking on the stage giving a lecture to the audience holding a microphone
Business Conference Stage: Tech Startup CEO Presents New Product, Holding Laptop, Does Motivational Talk, and Lecture about Science
Serious Man Lecturer holding Notebook and talking into Camera. Successful Speaker having Distance Video Conference, Webinar, Recording Online Training while sitting at Home
Cropped shot of Caucasian bearded university professor holding notes on clipboard while giving lecture to multicultural group of students sitting at desks in auditorium
Business Conference Stage: Tech Startup CEO Presents New Product, Holding Laptop, Does Motivational Talk, and Lecture about Science
Positive Male Doctor holding Online Lecture, Webinar Training at Workplace. Professional Pediatrician with Eyeglasses. Working Distant wearing white Medical Coat with Stethoscope. Healthcare. Webcam.
Retired grey haired military officer in formalwear holding book while giving lecture to new recruits in camouflage uniform sitting at desks in classroom and making notes in copybooks
A young adult stretching after exercise, meditating, studying yoga at home living room, people and hobbies, preparing for exam
Medium slow-motion video: Young woman giving safety lecture at manufacturing facility
Business Conference Stage: Tech Startup CEO Presents New Product, Holding Laptop, Does Motivational Talk, and Lecture about Science
Business Conference Stage: Tech Startup CEO Presents New Product, Holding Laptop, Does Motivational Talk, and Lecture about Science
Cheerful multiracial students walking to lecture on sunny day
Employee enjoying story book in studio, feeling happy reading literature over greenscreen. Young businessman holding novel lecture.
Lady hands holding greenscreen smartphone indoors closeup. Unknown trader reading chroma key cellphone analyzing stock market data at city view office. Unrecognized manager enjoying training lecture
Middle shot of Caucasian and Middle Eastern dentists talking. Professional male lecturer holding teeth cast and teaching female assistants. Odontology, studying, education, medicine.
Close-up of lecturer using tablet in medical training class
Close-up of unrecognizable male medical university professor giving lecture to group of multiethnic students in white coats holding skull model in hands
A young man holds an online meeting with students. Energetic friendly teacher tells students a new lecture
Business Conference Stage: Tech Startup CEO Presents New Product, Holding Laptop, Does Motivational Talk, and Lecture about Science
Business Conference Stage: Tech Startup CEO Presents New Product, Holding Laptop, Does Motivational Talk, and Lecture about Science
A business lecture in the hall. Two people leading the lecture talking on stage holding a microphone
Woman holding mockup tablet computer at home closeup. Student watching online blogs streaming platform on weekend. Unrecognized manager enjoy training lecture on sofa. Girl resting with chroma key pad