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**47,672 results for blackboard in videos**

Animation of mathematical equation and diagrams over blackboard

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Close up of blank blackboard

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Smart Planner: Organize Dates, Appointments, and Schedule

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chalk board texture background overlay

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Tracking shot of male African American teacher going there and back in front of blackboard giving lecture on programming in school classroom at daytime

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Young asian teacher woman teaching speak to camera video conference with student. Female teacher training the mathematics in classroom blackboard online course.

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teach lettering on blackboard

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back to school classroom with blackboard background with anime or cartoon style. seamless looping time-lapse virtual video animation background.

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Empty classroom with chalkboard and rows of desks. Anime art style. Loop animation

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Hand of carpenter drafting furniture and writing measurements with piece of chalk on blackboard in the workshop. Close-up shot

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formula written on blackboard with chalk

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Woman's hand writing "THINK OUTSIDE THE BOX" with white chalk on blackboard

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the hand writes on the blackboard a formula

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closeup mathematical formula and elements on blackboard school background elegant and luxury animation footage of education theme

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Professor teacher (real, not an artist) gives a lecture on physics, mathematics at the blackboard at the university. Close-up

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Medium shot of Caucasian teenage schoolboy answering at blackboard during programming lesson

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The word PEACE written in chalk on a blackboard and animated. September 21. International Day of Peace.

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Teacher Portrait in the Classroom on Blackboard Background

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Woman writing savings on blackboard turns off light.

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Business strategy flow chart animation on blackboard

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Animation of medical drawings, mathematical equations and diagrams on blackboard

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Young Student Writing Complex Mathematical Formula Equation on the Blackboard.

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Hand writing 2020 on blackboard with chalk

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Hanukah dreidel greenscreen 4k 50fps

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Medium of young Biracial male professor wearing eyeglasses explaining graph on blackboard to unrecognizable student in classroom at daytime

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Young teacher lectures at the School of Mathematics, writes chalk on a blackboard

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Beautiful woman writing a mathematical formula on a blackboard in a classroom 20s 4k

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back to school classroom with blackboard background with anime or cartoon style. seamless looping time-lapse virtual video animation background.

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schoolboy with glasses reads a book at the blackboard

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Human hand draws words yes no and possibly on blackboard with white chalk, front view. Words yes no and maybe are drawn on board. Concept of choice

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Female Doctor illustration animated in black on blackboard with copy space.

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chalk board texture background overlay

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CU Male hand writing Chinese characters on blackboard

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closeup mathematical formula and elements on blackboard school background elegant and luxury animation footage of education theme

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student lettering on blackboard

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Multiethnic preteen students raising their hands to solve Math equation at blackboard during lesson

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Man highlighting on a blackboard with text "Learn English", concept of learning english, studying and improving language

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Maths Equations And Diagrams On Blackboard/ 4k animation of an abstract science background of mathematics equations and diagrams written with chalk on school blackboard with blur and depth of field

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The woman writing an idea on the blackboard looks at the camera and finds an idea.

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Video of a teacher next to a chart drawn on a blackboard

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Animation of white icons over blackboard

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Young teacher is giving a lecture to students, standing near the blackboard in the university auditorium. High quality 4k footage

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Close-up of an african american woman who stands at the blackboard in the office

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Priorities concept written on blackboard

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Side view backlighted of young Caucasian woman wearing t-shirt and apron, drawing with chalk on blackboard indoors at daytime

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Young beautiful hispanic woman holding blackboard at new home

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back to school written on blackboard

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back to school classroom with blackboard background with anime or cartoon style. seamless looping time-lapse virtual video animation background.

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The teacher at the blackboard is a man of 40s without a face, writing down mathematical formulas with chalk. Online math lesson.

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REOPEN written in chalk on blackboard

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Human hand draws cartoon sketch of viral disease, bacteria, with chalk on blackboard timelapse. Virus is drawn with chalk on blackboard. Concept of coronavirus and epidemic

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empty school or university classroom with neat desks and chairs. Cartoon or anime watercolor painting illustration style. seamless looping 4K virtual video animation background.

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Man is drawing currency exchange rate graph on blackboard , in studio Chiangmai Thailand.

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closeup mathematical formula and elements on blackboard school background elegant and luxury animation footage of education theme

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remote education lettering on blackboard

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Improvement. The businessman in glasses is writing on the blackboard

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Young asian teacher woman teaching wearing headset speak to camera video conference with student. Female teacher training the mathematics in classroom blackboard online course.

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School education, maths written by white chalk on the blackboard background, greenboard

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Woman writing Unhealthy Food on blackboard looks unhappy at camera.

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Video of a teacher looking at the blackboard

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Digital animation of multiple mathematics concept icons against blackboard

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Woman writing on blackboard boys vs girls concept

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Stop word written on the blackboard

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Girl writing on blackboard

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Full shot of male African American teacher standing in front of blackboard in school classroom giving lecture on programming at daytime

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Young beautiful hispanic woman preschool teacher erasing blackboard at kindergarten

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Hand writing on a blackboard

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back to school classroom with blackboard background with anime or cartoon style. seamless looping time-lapse virtual video animation background.

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Muscular athletic man writing on the blackboard with chalk in the gym. Sport, weight lifting and health care concept

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Row of light bulbs chalk drawing on blackboard.

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Timelapse word idea write on a chalkboard. On blackboard close-up draw word idea with chalk hand. oncept of the answer and solution

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from success to confidence and repeat sign on blackboard with arrows, psychology and mindset shift

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Learn science or chemistry formula confident beautiful woman teacher chalk blackboard background

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closeup mathematical formula and elements on blackboard school background elegant and luxury animation footage of education theme

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kid lettering on blackboard

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Idea, plan, action. The man in glasses is writing on the blackboard

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Diabetes - hand write word on blackboard with chalk, sugar sickness

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Question marks on chalkboard, school blackboard

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The woman writing a question on the blackboard looks at the camera and solves the question.

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Video of a student showing a blackboard

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Video of blackboard sign on wooden stand with copy space on white background

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hand holding a blackboard stop war

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Portrait smiling academic man studying math formulas on blackboard

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Girl writing on blackboard

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Selective focus shot of unrecognizable teacher of Mathematics helping female college student to solve problem on blackboard

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Woman's hand with chalk writes a formula on a blackboard

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Young caucasian woman teaching words on blackboard recording with smartphone at kindergarten

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back to school classroom with blackboard background with anime or cartoon style. seamless looping time-lapse virtual video animation background.

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Close-up of a teacher writing various mathematical formulas on a blackboard at a university or college.

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Writing and drawing graphs on a blackboard

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Word teamwork is written with hand on a chalkboard and people drawn, timelapse. On the blackboard are drawn men and the phrase teamwork.

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Pretty smiling young female college student writing on the blackboard during a chemistry class.

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MS Rear view of young woman writing mathematical formula on blackboard

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closeup mathematical formula and elements on blackboard school background elegant and luxury animation footage of education theme

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alphabet lettering on blackboard

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Hot Girl Summer written on a blackboard being held by a Young Beautiful African Woman

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A young student writes with chalk on a blackboard

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Young positive female student of mixed-race ethnicity standing against chalkboard in classroom, looking at camera and happily smiling

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Woman writing joy on blackboard looks cheerful at camera.

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Video of someone showing the blackboard

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