cu young woman resting on pillow / singapore - sum board stock videos & royalty-free footage00:17CU Young woman resting on pillow / SingaporeMathematics, Mathematical Symbol, Blackboard - Visual Aid
professor writing on blackboard (timelapse) - sum board stock videos & royalty-free footage00:30Professor writing on blackboard (timelapse)Mathematics, Blackboard - Visual Aid, Teacher
professor writing on blackboard - sum board stock videos & royalty-free footage00:22Professor writing on blackboardBlackboard - Visual Aid, Lecturer, Mathematics
ms pan man writing chinese characters on blackboard / singapore - sum board stock videos & royalty-free footage00:12MS PAN Man writing Chinese characters on blackboard / SingaporeMathematics, Teacher, Blackboard - Visual Aid
little boy calculating fractions on math lesson - sum board stock videos & royalty-free footage00:18Little boy calculating fractions on math lessonBlackboard - Visual Aid, Mathematics, Child
1969 montage microchips, fist pounding blackboard covered with formulas. - sum board stock videos & royalty-free footage00:131969 MONTAGE Microchips, fist pounding blackboard covered with formulas.Mathematics, Mathematical Symbol, Archival
little girl solving mathematical problems - sum board stock videos & royalty-free footage00:13Little girl solving mathematical problemsChild, Blackboard - Visual Aid, Mathematics
writing formula on chalkboard - sum board stock videos & royalty-free footage00:05CU Writing Formula on ChalkboardBlackboard - Visual Aid, Close-Up, Handwriting
ms young woman writing mathematical formula on blackboard / singapore - sum board stock videos & royalty-free footage00:08MS Young woman writing mathematical formula on blackboard / SingaporeTeacher, Mathematics, Blackboard - Visual Aid
close-up of the hand of a middle-aged man plotting a graph to show the relative speed at which the planets in our galaxy travel around the sun relative to the distance of their orbits from the sun (m equals mercury, v equals venus etc.) with chalk. - sum board stock videos & royalty-free footage00:17Close-up of the hand of a middle-aged man plotting a graph to show the relative speed at which the planets in our galaxy travel around the sun relative to the distance of their orbits from the sun (M equals Mercury, V equals Venus etc.) with chalk.Blackboard - Visual Aid, Mathematics, Lecture Hall
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teacher draws on blackboard - sum board stock videos & royalty-free footage00:12Teacher Draws on BlackboardMathematics, Mathematical Symbol, Mathematical Formula
b/w 1949 boy + girl at chalkboard doing addition problem / girl corrects boy's mistake / industrial - sum board stock videos & royalty-free footage00:14B/W 1949 boy + girl at chalkboard doing addition problem / girl corrects boy's mistake / industrialMathematics, Mathematical Symbol, Archival
cu hand writing a math equation on black chalkboard - sum board stock videos & royalty-free footage00:33CU Hand writing a math equation on black chalkboardMathematics, Mathematical Symbol, Mathematical Formula
chalkboard - sum board stock videos & royalty-free footage00:28ChalkboardMathematical Symbol, Physics, Mathematics
cu hand writing "math" black chalkboard - sum board stock videos & royalty-free footage00:10CU Hand writing "Math" black chalkboardBlackboard - Visual Aid, Classroom, Mathematics
background with flying formulas and equations on green screen - sum board stock videos & royalty-free footage00:08Background with flying formulas and equations on green screenMathematical Symbol, Mathematics, Number
ms young woman writing mathematical formula on blackboard / singapore - sum board stock videos & royalty-free footage00:10MS Young woman writing mathematical formula on blackboard / SingaporeBlackboard - Visual Aid, Mathematics, Mathematical Symbol
professor writing on blackboard (timelapse) - sum board stock videos & royalty-free footage00:20Professor writing on blackboard (timelapse)Lecturer, Mathematics, Physics
b/w 1920s boy doing math problems at chalkboard as other boy watches in vocational school / newsreel - sum board stock videos & royalty-free footage00:15B/W 1920s boy doing math problems at chalkboard as other boy watches in vocational school / newsreelMathematics, Archival, Blackboard - Visual Aid
female university student writing a formula on the board with a felt tip marker - sum board stock videos & royalty-free footage00:10Female university student writing a formula on the board with a felt tip markerWomen, Studying, Colombia
business man, planning and writing on glass board or window for coding, math and formula solution at tech company. young professional drawing numbers, problem solving and information technology idea - sum board stock videos & royalty-free footage00:12Business man, planning and writing on glass board or window for coding, math and formula solution at tech company. Young professional drawing numbers, problem solving and information technology ideaMathematics, Men, Contemplation
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glass wall, hands writing and planning, brainstorming and math equation in office. strategy, idea and person with marker on board for business project, formula and financial analysis of information - sum board stock videos & royalty-free footage00:11Glass wall, hands writing and planning, brainstorming and math equation in office. Strategy, idea and person with marker on board for business project, formula and financial analysis of informationGlass - Material, Blackboard - Visual Aid, Mathematical Formula
mathematical formulas (green) - sum board stock videos & royalty-free footage00:25Mathematical formulas (green)Mathematical Symbol, Mathematics, Mathematical Formula
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professor writing on blackboard - sum board stock videos & royalty-free footage00:17Professor writing on blackboardBlackboard - Visual Aid, Teacher, Mathematics
professor talking to students - sum board stock videos & royalty-free footage00:15Professor talking to studentsLecturer, University, Lecture Hall
sun in orange sky, sunset, trees, branches & leaves in silhouette, male scientist writing equation underneath 'sub-solar surface', 'convection',... - sum board stock videos & royalty-free footage00:141968: SOLAR RESEARCH: HD: WS Sun in orange sky, sunset, trees, branches & leaves in silhouette, MS ZI Male scientist writing equation underneath 'sub-solar surface', 'convection', 'currents' on blackboard. Astronomy, solar physics, science, mathematics.Blackboard - Visual Aid, Mathematics, Scientist
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boy writing math equations in a class lesson. school kid solving maths problem on a whiteboard in a classroom. young confident student writing on a board during tutoring to practice mathematics - sum board stock videos & royalty-free footage00:06Boy writing math equations in a class lesson. School kid solving maths problem on a whiteboard in a classroom. Young confident student writing on a board during tutoring to practice mathematicsMathematics, Mathematical Symbol, Learning
ms young woman writing mathematical formula on blackboard in classroom / singapore - sum board stock videos & royalty-free footage00:05MS Young woman writing mathematical formula on blackboard in classroom / SingaporeMathematics, Mathematical Symbol, Education
chalkboard (loopable) - sum board stock videos & royalty-free footage00:19Chalkboard (Loopable)Mathematical Symbol, Mathematics, Science
animated flying mathematical formulas on dark background - sum board stock videos & royalty-free footage00:05Animated flying mathematical formulas on dark backgroundScience, Blackboard - Visual Aid, Doodle
cu td student writing on blackboard / richmond, virginia, united states - sum board stock videos & royalty-free footage00:15CU TD Student writing on blackboard / Richmond, Virginia, United StatesMathematics, Classroom, Blackboard - Visual Aid
professor writing on blackboard - sum board stock videos & royalty-free footage00:29Professor writing on blackboardMathematics, Males, Lecturer
teacher draws on blackboard - sum board stock videos & royalty-free footage00:08Teacher Draws on BlackboardAlgebra, Blackboard - Visual Aid, Teaching
mathematical formulas animation with alpha channel - sum board stock videos & royalty-free footage00:14Mathematical formulas animation with alpha channelMathematical Symbol, Mathematics, Mathematical Formula
zoom in close up man writing equations on chalkboard - sum board stock videos & royalty-free footage00:061956 zoom in close up man writing equations on chalkboardBlackboard - Visual Aid, Archival, Scientist
professor in auditorium - sum board stock videos & royalty-free footage00:25Professor in auditoriumBlackboard - Visual Aid, Mathematics, Lecture Hall
presents interviews with four scientists who explore their thought processes, personalities, and methods of work as they analyze ways by which they... - sum board stock videos & royalty-free footage00:351970s: Man monitors graph printer in lab. Man writes equations on chalk boardBlackboard - Visual Aid, Mathematical Symbol
scientist robert goddard writes an equation on a chalkboard. - sum board stock videos & royalty-free footage00:22Scientist Robert Goddard writes an equation on a chalkboard.Blackboard - Visual Aid, Scientist, Mathematical Formula
diverse pair of women inventors working on healing cancer - sum board stock videos & royalty-free footage00:14Diverse pair of women inventors working on healing cancerWomen, Construction Industry, Blackboard - Visual Aid
animated flying mathematical formulas on chroma screen - sum board stock videos & royalty-free footage00:05Animated flying mathematical formulas on chroma screenRadius - Circle, Number, Chemistry
professor writing on blackboard - sum board stock videos & royalty-free footage00:16Professor writing on blackboardBlackboard - Visual Aid, Teacher, Lecturer
math formulas loop - sum board stock videos & royalty-free footage00:10Math formulas LoopMathematical Symbol, Mathematics, Physics
1939 montage classroom with teacher writing on chalkboard, student using an abacus and a student going to front of class to answer a question / japan - sum board stock videos & royalty-free footage00:141939 MONTAGE classroom with teacher writing on chalkboard, student using an abacus and a student going to front of class to answer a question / JapanAbacus, Mathematics, Student
child explaining a mathematical equation on blackboard - sum board stock videos & royalty-free footage00:29Child explaining a mathematical equation on blackboardChild, Blackboard - Visual Aid, Geek
math formulas background (loopable) stock video - sum board stock videos & royalty-free footage00:13Math Formulas Background (Loopable) stock videoMathematical Symbol, Mathematical Formula, Blackboard - Visual Aid
portrait of a girl writing on the blackboard in the classroom - sum board stock videos & royalty-free footage00:08Portrait of a girl writing on the blackboard in the classroomBlackboard - Visual Aid, Mathematics, Student
math formulas background (loopable) - sum board stock videos & royalty-free footage00:12Math Formulas Background (Loopable)Mathematical Formula, Mathematical Symbol, Mathematics
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mad scientist very frustrated by error in calculations - sum board stock videos & royalty-free footage00:10Mad scientist very frustrated by error in calculationsMathematics, Mathematical Symbol, Removing
vertical animated flying mathematical formulas on chroma screen - sum board stock videos & royalty-free footage00:05Vertical animated flying mathematical formulas on chroma screenMathematical Symbol, Number, Mathematics
the boy writes on the blackboard - sum board stock videos & royalty-free footage00:22the boy writes on the blackboardBlackboard - Visual Aid, Child, Teaching
female hand arranging test tubes in holder, female adding material to tube, dolly back female & male working in lab. intelligence: vs girl writing... - sum board stock videos & royalty-free footage00:441965: RESEARCH: MS ZO WS Female hand arranging test tubes in holder, female adding material to tube, DOLLY BACK WS Female & male working in lab. INTELLIGENCE: VS Girl writing algebra equation answer w/ chalk on blackboard, CU Child's face & frecklesBlackboard - Visual Aid, Child, Laboratory
teacher talking in front of class at school - sum board stock videos & royalty-free footage00:15Teacher talking in front of class at schoolTeacher, Education, Classroom
background with flying formulas and equations on green screen - sum board stock videos & royalty-free footage00:08Background with flying formulas and equations on green screenMathematical Formula, Mathematical Symbol, Mathematics
background with flying formulas and equations on green screen - sum board stock videos & royalty-free footage00:08Background with flying formulas and equations on green screenBlackboard - Visual Aid, Mathematical Formula, Mathematical Symbol
student writing on blackboard - sum board stock videos & royalty-free footage00:14student writing on blackboardMathematics, University, Student
portrait of student boy writing on chalkboard in classroom at school - sum board stock videos & royalty-free footage00:08Portrait of student boy writing on chalkboard in classroom at schoolMathematics, Student, Blackboard - Visual Aid
israeli boy: life on a kibbutz - part 8 of 25. israeli society is viewed through the eyes of nir, a young boy born and raised on a kibbutz. scenes of milking, farming, schooling, and socializing illustrate the busy goings-on of communal life - and show wh - sum board stock videos & royalty-free footage00:34Israeli Boy: Life on a Kibbutz - part 8 of 25. Israeli society is viewed through the eyes of Nir, a young boy born and raised on a kibbutz. Scenes of milking, farming, schooling, and socializing illustrate the busy goings-on of communal life - and show wh1970-1979, Mathematics, Education
sailor writes mathematical equations on a chalkboard. - sum board stock videos & royalty-free footage00:13A U.S. sailor writes mathematical equations on a chalkboard.
little scientist - sum board stock videos & royalty-free footage00:16Little ScientistChild, Contemplation, Learning
blackboard - sum board stock videos & royalty-free footage00:18BlackboardDigitally Generated Image, Blackboard - Visual Aid, Education
examines the determined purpose and accomplishments of jewish immigrants to their homeland--the planning and growth of israel's cities, reclamation... - sum board stock videos & royalty-free footage00:211970s: Person writing math equations on paper. Man writing math equationsTeacher, University, 1970-1979
presents interviews with four scientists who explore their thought processes, personalities, and methods of work as they analyze ways by which they... - sum board stock videos & royalty-free footage00:341970s: Man writes equations on blackboard as colleagues watchMathematical Symbol, Blackboard - Visual Aid
professor talking to students - sum board stock videos & royalty-free footage00:31Professor talking to studentsBlackboard - Visual Aid, Teacher, Mathematical Formula
ds caucasian business man using the display to show the graphs and values during his presentation in the glass conference room - sum board stock videos & royalty-free footage00:20DS Caucasian business man using the display to show the graphs and values during his presentation in the glass conference roomSale, Business, Meeting
young businesswoman talking with coworkers during meeting at offfice - sum board stock videos & royalty-free footage00:08Young businesswoman talking with coworkers during meeting at offficeMathematics, Mathematical Symbol, Mexico
cu td math tasks on blackboard, pak ou villages, laos - sum board stock videos & royalty-free footage00:06CU TD Math tasks on blackboard, Pak Ou Villages, LaosNo People, Blackboard - Visual Aid
math formulas background (loopable) stock video - sum board stock videos & royalty-free footage00:13Math Formulas Background (Loopable) stock videoGreen Background, Mathematics, Calculating
mathematical symbol, mathematics, mathematical formula, calculating - sum board stock videos & royalty-free footage00:15Mathematical Symbol, Mathematics, Mathematical Formula, CalculatingMathematical Symbol, Mathematics, Mathematical Formula
maths background - sum board stock videos & royalty-free footage00:11Maths BackgroundMathematical Symbol, Mathematics, Mathematical Formula
desk calculating numbers de bs mo - sum board stock videos & royalty-free footage00:28Desk calculating Numbers DE BS MOTax, Calculator, Mathematics
little boy makes mistake on math lesson - sum board stock videos & royalty-free footage00:27Little boy makes mistake on math lessonMathematics, Education, Child
animated of mathematical formulas on a white background - sum board stock videos & royalty-free footage00:10Animated of Mathematical formulas on a white backgroundMathematical Symbol, Motion, Mathematics
outtakes from various educational film productions - sum board stock videos & royalty-free footage00:341950s: math teacher using chalkboard to explain geometryMathematics, Blackboard - Visual Aid