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An old professor teaches mathematics front of the blackboard
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Professional Male Teacher Gives Presentation, Uses Whiteboard with Technical Information and Charts to Illustrate Solution Options During Video Call. E-Learning and Remote Education Concept.
Science teacher in front of the blacboard filled with chemistry symbols.
Frustrated senior teacher standing in front of a chalk board.
Dedicated and focused mid-adult chemistry teacher leading the chemistry lesson, using the modern technology, for better teaching experience
Portrait a male teacher at a university sitting in a comfortable leather chair at the department.
Science teacher writting at blackboard. Education and physics.
Indoor image of an exhausted male teacher or professor feeling sleepy in the classroom. He is standing against blackboard where his thought bubble is drawn depicting his sleepiness condition. The bespectacled man is in formal shirt, sweater and coat. One person, waist up, horizontal composition with copy space.
Photo of charming senior woman university teacher wear white coat in class isolated on green board background.
Young man wearing formal attire looking confident at camera and crossed hands on breast against writing board background. Concept of education and study, skills, knowledges, graduation. Ad
University professor with stick, cross processed
Portrait Of Teacher By Blackboard In Classroom
old professor standing in front of chalk board with complicated formula and calculation studio shot
The teacher started a countdown phone during the exam for completing the task.
Scientist in chemistry class, in front of blackboard full of formulas.
Male teacher in a black suit and white shirt tells a lecture for students at the blackboard
man with a mad hair and a lab coat in front of a blackboard,, holding a piece of chalk
Crazy professor / scientist / lecturer with mad hairstyle wearing horn rimmed glasses and fake mustache standing in front of a whiteboard and pointing at formula E=mc with happy goofy face
Mature adult teacher wearing a white lab coat and yellow necktie standing in front of blackboard for teaching math. He is standing on the right side of frame. The green chalkboard is full of mathematics. He is wearing glasses and has curly hair and beard. The photo was shot is studio with a medium format camera horizontally.
An elderly professor of mathematics stands in his office at a white board with notes and explains the material to students.
Professor at the blackboard dabs his forehead with a handkerchief.
A serious male teacher stands at the green blackboard in the classroom with his arms folded on his chest.
Science teacher writting at blackboard. Education and physics.
An astrophysicist is sitting in front of a black board and a laptop computer.
man with a mad hair and a labcoat infront of a blackboard,, holding a piece of chalk
Selective focus, Elderly smiling gray-haired man in educational class, teacher against background of blackboard and training equipment
Man in front of huge blackboard. He knows answer.
Serious professor explaining algebraic formula by blackboard
Senior adult teacher wearing blue sweater and shirt standing in front of blackboard.He is standing on the left side of frame.The green chalkboard is full of mathematic formulas.He is wearing glasses and has gray hair and mustache.The photo was shot is studio with medium format DSLR camera Hasselblad horizontally.
Free Images: "bestof:Shutov VE.jpg en Shutov Vadim Evgenyevich - Russian eminent scientist D E professor Shutov Vadim Evgenyevich has made an outstanding contribution to the"
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