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HD: Professor Writing On Blackboard and Lecturing French
HD: Professor Writing On Blackboard and Lecturing French
Getty Images
HD: Financial Expertise Lecturing In The Seminar
HD: Financial Expertise Lecturing In The Seminar
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HD: Financial Advisor Explaining Investment Plans
HD: Financial Advisor Explaining Investment Plans
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CU TU Shot of teacher hands with crayons / Grossweil, Bavaria, Germany
CU TU Shot of teacher hands with crayons / Grossweil, Bavaria, Germany
Hearst Metrotone News
A man uses a pointer on a blackboard to indicate the path of the Pioneer 3 spacecraft from the Earth to the Moon.
A man uses a pointer on a blackboard to indicate the path of the Pioneer 3 spacecraft from the Earth to the Moon.
Hearst Metrotone News
A U.S. sailor writes mathematical equations on a chalkboard.
A U.S. sailor writes mathematical equations on a chalkboard.
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Male teacher or student hand writing Pi numbers
Male teacher or student writing on blackboard Pi numbers.
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MS TD large blackboard with beer menu of the day in tasting room of micro brewery and bartender working beer taps and young couples toasting and drinking / Thousand Palms, California, USA
MS TD large blackboard with beer menu of the day in tasting room of micro brewery and bartender working beer taps and young couples toasting and drinking / Thousand Palms, California, USA
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boy successfully executes business calculations
boy successfully executes business calculations
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Chalkboard Writing - Idea
Animation of a light bulb representing an idea being written on a chalkboard.
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WS TU Students and Professor Watching Video on Bio Fuel Technology / Richmond, Virginia, United States
WS TU Students and Professor Watching Video on Bio Fuel Technology / Richmond, Virginia, United States
Sky News
Stock Shots Teacher Writing on Board And Grading Work
CLEAN: Stock shots teacher writing on board (conjugating verbs in Latin) in classroom and looking through and grading student work, in London on July 3rd, 2017.
Sherman Grinberg Film Library
Farman Goliath airliner lands, bearing passengers, in France circa 1920
Farman Goliath airplane approaches on airfield, with tail marking 'F-FFHMY' / chalkboard displays arrivals of airplanes, including the Goliath / passengers hop out of plane, which is labeled with airline name 'Compagnie des Grands...