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Videos de stock libres de regalías sobre Pizarron

158,021 videos de stock libres de regalías sobre pizarron Vea imágenes de stock sobre pizarron.

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Rays of light falling to the empty dark classroom. The camera panning behind rows of desks and chairs. Teaching class without students during a break. Abandoned school. Disturbing mood.
Young happy smiling cheerful Indian latin guy Hispanic high school college university student standing in classroom campus laughing looking at camera. Headshot close up portrait.
Zoom-in time-lapse of smart person solving scientific problem writing formulas on chalkboard focused on studies. People and knowledge concept.
Impressive animation shows data flow in a motherboard in pc. Highlighted processor among circuits and electronic components.CPU. Hardware. Concept of digital communication, cloud computing, processing
Female Chief Analyst Holds Meeting Presentation for a Team of Economists. She Shows Digital Interactive Whiteboard with Growth Analysis, Charts, Statistics and Data. People Work in Creative Office
Cute pretty child rides on balancing swing. Little girl laughing and having fun, swinging on seesaw board, playing playground. Concept of happy childhood, positive emotions, POV
child kid draw a house on the asphalt with chalk . childhood mortgage dream kid concept. little girl playing draws with chalk big house. concept loan mortgage for a dream home residential building
Modern Electronics Research, Development Facility: Engineer Working on Computer, Typing with His Hands on a Keyboard. Scientist Design PCB, Silicon Microchips, Semiconductors. Closeup Focus on Hands
VFX Animation Concept: Modern Authentic Robot Arm Holding Contemporary Super Computer Processor Smoothly Moving into Focus.CPU Microchip Digitilizes and Sends Data Power Lines with Computer Vision
Rays of light falling to the empty dark classroom. The camera moves ahead passing by rows of desks and chairs. Teaching class without students during a break. Abandoned school. Disturbing mood.
School is closed, Empty classroom
Chef cooks beef steak, sprinkling with salt on a background of professional kitchen, slow motion.
Female Operations Manager Holds Meeting Presentation for a Team of Economists. Asian Woman Uses Digital Whiteboard with Growth Analysis, Charts, Statistics and Data. People Work in Business Office.
Creative mathematician writing formulas on the chalkboard, hand close up: academic research and science concept
Man and woman coworkers are writing on chalk board discussing business strategy in open space office. Interior, coworking space and marketing concept.
A male teacher in protective face mask standing by chalkboard in front of children in the classroom. pointing at posters and explaining math lesson while working in school during covid-19 outbreak.
Young cool millennial man, teenager hipster in california rides his skateboard on boardwalk beach. Action wide shot of man perform skateboard tricks on sunny day in tourist spot
Team of Analytics, Economists and Young Businesspeople Hold Meeting Presentation use Shows Digital Interactive Whiteboard with Growth Analysis, Charts, Statistics and Data. People Work in Office
Clapper board used on green screen
Camera Through Math and Equation, seamless loop in 15 seconds.
Happy college student writing equation on white board in class. Satisfied young girl solving math problem on whiteboard with classmates in background watching her. Proud high school student writing.
a woodcarver processes a walnut wood board with a chisel. artisan makes a tea tray
Aerial of large academic school building, higher education, public school building, beautiful cinematic establishing shot
Wooden Chairs in School Classroom
Young asia student remotely learn online at home in coding robot car and electronic board cable in STEM, STEAM, mathematics engineering science technology computer code in robotics for kids concept.
A male Caucasian online educator , holding a chalk board , teaching mathematics to his students via video call on  his smartphone mobile device
Pan across empty classroom in school or university - chairs and desks without anyone sitting vacant room elementary or high school during day off or summer break vacation - no students - camera move
Hands of the artist designer draw a storyboard on paper. Storytelling. Story frames with heroes.
Motion to the left showing empty school classroom with chairs under desks. Concept for pandemic.
Hispanic school teacher give math class look at camera explain equation point at whiteboard stand in classroom. Online class, video conference call virtual teaching, distance lesson. Webcam view
Hand Holding Chalk and Writing Complex and Sophisticated Mathematical Formula Equation on the Blackboard. Shot on RED EPIC-W 8K Helium Cinema Camera.
American creative designer writing notes on white board standing in office room. Concept create ux design for people. Young male manager working on new blueprint, taking color notes holding marker in
Creative mathematician writing formulas on the chalkboard, hand close up: academic research and science concept
Medical Science Laboratory: Beautiful Black Female Scientist Writes Detailed Project Data Analysis on the Board, Her Diverse Team of Colleague Listens. Young Scientists Solving Problems. Elevated Shot
Young multi ethnical graduates in caps laughing out loud and having fun on their graduation day. Outdoors. Close up
Indian young teacher man wearing headset teaching online video conference live stream by smartphone. Asian teacher teaching mathematics class webinar online for students learning.
Modern Electronics Facility: Beautiful Black Female Scientist, Engineer Does Printed Curcuit Motherboard Soldering. Does Design, Development of Industrial PCB, Silicon Microchips, Semiconductors
Data processing in circuit board abstract server. Data moves in the form of moving lines. The movement and processing of data inside a server or computer. 3d rendering
Math and Physics Formulas loopable
3d Rendering of Empty classroom
Mathematical background with flying symbols, functions and equations
Skateboarder carving the bowl in the park
Sprinkling sugar powder on hanukkah jelly doughnut, slow motion, BMPCC 4K
Stop motion animation. Multicolor school supplies are moving from and then to the school backpack on blue background. Back to school concept.
Serious indian kid primary school girl holding chalk writing on blackboard. Focused latin child preteen schoolgirl learning english alphabet letter handwriting standing in classroom. Close up view.
Cinematic shot of young happy female teacher or student with headphones is having fun to listen music with smartphone and dance in front of blackboard with formulas in college or university classroom.
Adult girl after clinical expertise write on the glass discovery way and structural solution of medicaments. Female teacher explaining to pharmacist students pharmaceutical development in university
Zoom-in time lapse of Arab man working in shared office writing and typing with laptop while coworkers are moving around talking cooperating. Teamwork and workplace concept.
Young Asian woman writing glass wall with sticky notes, leading creative team group meeting in modern office. Business people teamwork, colleague coworker project brainstorm, or idea sharing concept
Portrait of mature adult woman wearing suit standing alone in class, smiling and looking at camera, blackboard with formulas is visible in background.
Artificial intelligence, microchip connections, electric pulses and binary codes.
AERIAL. Top view of skyscrapers and green screen build board with tracking point. Bird view of modern city at night streets.
Rear-view medium slowmo of high school or university students entering big auditorium and taking their seats while male mid-adult professor standing at blackboard preparing for lesson
The dart arrow hitting the bullseye - 4k video with hitting sound - electronic dart
Restaurant Kitchen: Diverse Team of Female Master Chefs Talking, Preparing Fish Dish on a Frying Pan. Two Professionals Cooking Delicious, Authentic, traditional Food, Healthy Meal Recipe
Restaurant: Portrait of Asian Female Chef Posing in Modern Professional Kitchen Turning and Looking at Camera and Smiling. Cooking Delicious Dish, Healthy, Authentic Food, Preparing Meal. Slow Motion
pick up Silicon die in silicon wafer negative color in machine in semiconductor manufacturing
The teacher in the classroom explains a new topic to students. Masked children, post-quarantine life, new normality after lockdown, coronavirus covid-19. Back to school
Modern countdown time motion graphic 5 to 1, with green screen background. Suitable for many video promotion
Purple printed circuit board with electrons html code flying into the future. The server processes the data. Loading data by the server/Load data from the server code html.
Female Developer and Male Statistician Use Interactive Whiteboard Presentation Touchscreen to Look at Charts, Graphs and Growth Statistics.  Shot on RED EPIC-W 8K Helium Cinema Camera.
Group of diverse young students standing together in classroom
Animation of network of connections with icons and schoolboy using a digital tablet in classroom in the background. Education and schooling concept digital composite.
CPUs and other processors shoot bright blue electrons around a circuit board as the camera pans around the motherboard with a shallow depth of field. 4K animation
Football plays loop over black background
Detective board with photos of suspected criminals, crime scenes and evidence with red threads
distance learning for schoolchildren, a young modern teacher leads online lessons for students using a smartphone during quarantine, teaching children
Math teacher writing equation or function on blackboard in school classroom. Student doing exercise on chalkboard in university or college. Woman teaching or studying. Close up with camera movement.
Skateboarder grinding rail in the park
Carpenter sanding wood with sandpaper. Male hands polishing wood with sandpaper. Carpentry, craftsmanship, Handicrafts.
Chef removes freshly baked bakery products from the oven. Baked bread is removed from the oven in a bakery.
Handheld shot with rack focus woman in face mask teaching class and asking question. Group of middle school children also wearing face masks raising their hands
KYIV, UKRAINE - September 03, 2019: Hands typing on keyboard. Hands typing on a laptop keyboard. Work force background. Woman working on laptop computer. Student hands typing, tapping on keyboard.
Fashionable living sitting lounge room with wooden laminate floor
Caring Indian mom teach small 5s adorable son to draw with colorful crayons on white board indoor. Home tutoring, child education, improve kid imagination, fine motor skills, develop abilities concept
An experienced chef in a professional kitchen prepares the dough with flour to make the bio Italian pasta. the concept of nature, Italy, food, diet and bio.
Person snowboarder snowboarding down slope closeup with gopro view white powder snow - winter extreme sports background
Math and Physics Stop Motion Background
Handheld tracking shot of female teacher in face mask teaching math to group of middle school kids also wearing face masks after returning to school amidst pandemic
Super Slow Motion Shot of Roasted Bacon Slices Falling on Wooden Board at 1000 fps.
Circuit Board with moving electrons Data Flow Loop Background Animation. Artificial Intelligence. Visualization of in Machine Learning, Computer Technology, Science. cyber and futuristic concept.
International Airport Departure Flip-Style Board. 20 Cities Timetable. Seamlessly Loopable Background
Family of four people is playing in board game with wooden tower together at home. Junior son is pulls out the brick and tower is crumbling
Future Education Teacher Explaining Students Class VR Students Using VR Headset eLearning Online Teaching Online Learning Modern Education Digital Classroom Concept Slow Motion 8k
Education concept - ABC alphabet school blackboard concept. School teacher writing ABC alphabet in English class or preschool.on chalkboard.
Flip black scoreboard 2022. 3D render
Cinematic shot of young confident female teacher or student is looking and smiling in camera in front of blackboard with math calculation,formulas and equations in college or university classroom.
Business woman writes notes using post stickers on paper. Brainstorming, teamwork.
Saint-Petersburg , Saint-Petersburg , Russia - 09 28 2019: Robot teacher in a classroom in front of students
Company Operations Manager Holds Meeting Presentation for a Team of Economists. Adult Male Uses Digital Whiteboard with Growth Analysis, Charts, Statistics and Data. People Work in Business Office.
Female Operations Manager Holds Meeting Presentation for a Team of Economists. Asian Woman Uses Digital Whiteboard with Growth Analysis, Charts, Statistics and Data. People Work in Business Office.
Slow motion - Close up of man in a suit riding electric scooter in city
Young female english language teacher standing in front of the whiteboard and studying in classroom
Glow science mathematics formulas flying from black backgrounds towards camera
grunge watercolor drawn question mark sign cartoon stop motion animation on paper background seamless loop - new dynamic joyful stop motion video art school science footage
Woman Electronics Factory Worker in Blue Work Coat and Protective Glasses is Assembling Smartphones with Tweezers and Screwdriver. High Tech Factory Facility with more Employees in the Background.
Time-Lapse of the Brilliant Young Mathematician Writes Complex Equation on the Blackboard. Shot on RED EPIC-W 8K Helium Cinema Camera.
Portrait of smiling mature woman math teacher wearing medical face mask set against a white board with algebra equations in a school classroom.
Young businesswoman office worker replacing sticky notes on planning board, female corporate leader write project tasks on post it sticky notes organize work attaching stickers on scrum glass wall
Savings. graph drawn on a chalkboard by financial expert
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