The teacher insanely screams at the students at the blackboard
Inclusive teacher leading English lesson in school classroom.
Portrait of scientist man with mathematical equations background. He put on his glasses and smile at camera. Clever and smart teacher lecturer concept. Let's study!
Young male student answering professor's question during university lecture
Portrait of elderly man wearing tweed jacket, necktie, and glasses and leopard pattern standing against white and brown background and looking away, then turning towards camera and smiling
Confident proud smart man in his 30s or 40s pointing at himself acknowledging his achievement at a job well done solving a complex problem
Focused Elderly Man Reading at Library Table
Medium vertical portrait of young Middle Eastern man in glasses, jacket using tablet computer, looking at camera and smiling, in front of demonstration screen with programming code in classroom
Front view of serious eldery bearded man in glasses which working with book at the library table
Medium footage of mature Caucasian woman in glasses, blouse, with ID badge standing by projector screen at conference, speaking about scientific research on biochemistry or microbiology
Senior professor standing in front of students in classroom and explaining math formulas on chalkboard during lesson in high school
Middle aged female professor in glasses taking notes in notebook and talking to students when listening to their answers during lecture at university
Smart man raising his arms acting confused, shaking his head no, and unsure of something while standing in front of a chalkboard
Inclusive footage: Teacher engaging students in science class
Side view of serious senior bearded man with eyeglasses which reading in the library
Man reading Book in University Library, Book Shop or Store, Spanish Student Wearing Glasses Standing near Bookshelf Reads Book and Exam Preparations.
Woman in glasses conducts an online lesson. She is teacher or professor of English. Woman smiles and speaks. She sits at table in the empty class.
Medium panning shot of elderly Caucasian professor in lab coat standing and talking, and multicultural postgrad students sitting at table with futuristic tablets and listening. Template for AR, VR.
Portrait of Caucasian happy male teacher in turning to camera and smiling joyfully at college. Portrait shot of man professor at Lecturer
Caucasian professional working from home in the evening
Senior professor explaining graph on chalkboard during math lesson, then looking at camera and smiling while giving lesson to college students
Split screen shot of IT teacher giving lecture to students about coding and unrecognizable girl using VR glasses at class
Math teacher standing in the class and smiling to the camera
Zoom in: Portrait of Young Female Teacher in University Classroom Standing In Front of Blackboard with Mathematic Formulas. Science Female Researcher in College Library, Looking at Camera Seriously
Portrait of young man in glasses looking at camera in library. Close up of male professor or librarian. Books shelves on background.
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
Portrait of Adult Man in Glasses Looking at Camera Smiling in Colour Studio Shot. Old Male Isolated Alone on Grey Background Close up. Aged
Close up view of senior professor using chalk while writing on blackboard and giving lecture in college
Successful Businesswoman Smiling in Office Workspace
Medium close-up tilt shot of young Middle Eastern male STEM teacher sitting at desk and working on computer while getting ready for lesson, in front of whiteboard with programming algorithms
A young man organizing books on a shelf
Portrait of a young happy man with glasses in a library, laughing and buying books.
Portrait of a young man with a smile, wearing glasses
Portrait of stylish Mature Asian Businessman wearing suit and glasses Outdoors looking around in city Smiling Close-up
Waist-up shot of multiethnic university students in white lab coats sitting in front of futuristic AR touchscreens and listening to elderly professor, explaining new lesson. Template for AR, VR.
Portrait of young man in glasses standing in library. Professor in library saying no. Customer of book store.
Close view of old intelligent bearded man in glasses which sitting in the library and reading book using magnifying glass
Doctor reading book and smiling to the camera in the office
Close Up Portrait of Smiling Businessman Working on Laptop
Businessman using laptop in library, smiling and researching
Medium shot of elderly Caucasian male professor sitting and demonstrating new lesson on futuristic touchscreen, multiethnic students watching attentively, then smiling at camera. Template for AR, VR.
Chemical Lab: Two Young Women Conducting Experiments
Medium close-up tilt portrait of geeky young male programming school or college teacher in glasses and jacket sitting at desk, working on computer while preparing for lesson, then looking at camera
Close-up shot of student consulting professor about thesis, with man working on laptop in background
A young person collecting books from the floor
A young man picking up books from the floor
Dolly-in portrait shot of smart female mathematician in glasses standing with her arms crossed before blackboard with complex calculus formulas
Scientist smart clever man in white work robe and spectacles near chalk board with equations and formula, drink coffee and smile at camera, 4k UHD.