Happy grey haired male teacher lectures to multinational students in the library during a lecture by the blackboard
A lot of people sitting at a seminar lectures and conferences - businessmen and IT professionals
lot of people sitting at a seminar lectures and conferences. Listen to the speake
Student uses laptop to record lectures in class with students.
A group of students listening to a lecture at the University from a Professor. Large audience for College lectures
In a university classroom filled with natural light, diverse students focus intently on their studies. Each person participates quietly
Bearded man in glasses lectures at a conference, talking with emotions and gesticulating
De-focused - a lot of people sitting at a seminar or lectures - background
clever woman is studying online by internet, viewing webinar and online lectures on laptop and making notes, details shot
Playing the pen on his finger, concept image of watching lectures, studying online via app
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USA - 1968 - In this documentary, a teacher lectures to her class about sign ups.
Multicultural Group Of Mature Students Taking Notes During Lesson in Bright Classroom. Students Note Lectures Given by Teacher. Concept
Specialist in development field conducting lectures on programming using visual representation for better understanding of material
Confident teacher educating students in classroom with health care education
1939 - African-American students take notes during a lecture at Dillard University.
1930 - College coeds drive to the seashore for a special outdoor lecture.
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1939 - African-American students take notes during a lecture at Dillard University.
Aerial view of student sleeping on couch after lectures, covered with fluffy blue blanket, resting head on pillow while sunlight enters room
Black business woman leader speaker gives educational lectures to employees in a modern office
1940s - A DuPont chemist demonstrates the use of different equipment in his lab.
International students go home after educational lectures
Calm concentrated caucasian male student or worker in glasses is watching online lectures or webinars and writing notes in a notebook while sitting at the cafe. Technologies concept
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1940s - A DuPont scientist shows off how unbreakable and flexible the company's glassware is.
Focused girl taking notes from her laptop in a cozy library
De-focused - a lot of people sitting at a seminar or lectures - background
Science lesson in a classroom with a microscope on the table near empty chairs
Young student learning online via laptop before lectures, woman sitting with open netbook for text message
1968 - In this sci-fi film, doctors ask a brilliant lecturer questions about the state of society.
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1940s - A DuPont scientist places a glass tube into his mouth.
Vertical Video University student attending online courses on e learning software, discussing with tutor and classmates about group project
Auditorium For Lectures At University. Interior view of empty conference hall in university
Empty classroom with desks and chalkboard after school hours
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1968 - In this sci-fi film, doctors ask a brilliant lecturer questions about the state of society.
HOUSTON - 1966 - A lecturer begins an address to NASA astronauts.
Vertical Video University student attending online courses on e learning software, discussing with tutor and classmates about group project
Young teacher turns pages of book in library. Woman in uniform relaxes during break between lectures in egg chair at university. Reading
Back view of two schoolgirls sitting at desk with blurred teacher explaining lesson at background. Concentrated smart Caucasian and African American girls studying in school. Intelligence and learning.
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1940s - A lodge employee uses a loudspeaker to announce the afternoon's athletic and educational activities while guests eat lunch.
Modern auditorium for lectures. Empty conference hall at the university. Meeting room for educational purpose. Motion camera back to the door. Vertical video
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1939 - A lecturer teaches students about geography at the HBCU Dillard University.
Nice caucasian female student holding her bag and books waiting for lectures standing near campus universoity modern building outdoor
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1940s - A DuPont chemist holds up a giant, transparent glass cylinder to his face during a presentation.
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1978 - Former astronauts including Walter Cunningham and Stuart Roosa listen to a lecture on a new kind of space suit being developed.
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1930s - People hear public lectures, buy goods, and play with their families in Paris, including at a park by the Eiffel Tower.
International students with backpacks discuss lectures
Middle school students sitting at desk raising hand and asking blurred teacher question. Back view of diligent smart Caucasian and African American classmates studying in junior high. Educational.
Auditorium For Lectures At University. Empty auditorium with wooden desks and chairs
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1940s - A DuPont chemist demonstrates the use of different equipment in his lab.