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Science teacher writting at blackboard. Education and physics.
An astrophysicist is sitting in front of a black board and a laptop computer.
A portrait of university professor standing in the campus library, smiling and looking at the camera with copy-space.
Portrait of happy college students standing in a library with his arms crossed and looking at camera.
Frustrated senior teacher standing in front of a chalk board.
Happy man at the library
Portrait Of Teacher By Blackboard In Classroom
Teacher, Professor, Senior Adult, University,Library,Book,Senior,Men,60-69 Years, Photography
Portrait of senior man reading a book at library
Portrait of male teacher at a university sitting in a comfortable leather chair at the department.
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.
Smiling teacher standing in front of chalkboard filled with mathematical formulas and diagrams during teaching session, wearing white shirt and looking engaged
Professor writing on the blackboard.
Mature teacher sitting at table in class and using laptop for video call with his students
Mature caucasian man high school teacher writes mathematics formulas on the blackboard with chalk. Copy space. Education concept.
Happy man at the library
Young Male Scientific Researcher Writes Formula or Equation on Whiteboard In the University of Technology Modern Laboratory. Science and Research for Genetics or Technology Concept.
Portrait of a senior man at library
Inspired mature writer sitting in a library, completing last chapter of his new book
man with a mad hair and a labcoat infront of a blackboard,, holding a piece of chalk
A senior Caucasian therapist is standing in his office with a green mental health awareness ribbon attached to his jacket and with copy-space.
Man in front of huge blackboard. He knows answer.
Portrait of kind elderly man. Happy Caucasian man in eyeglasses with gray hair standing on bookshelves background looking at camera with joy. Education for mature people concept
A man is walking in office buildings area and watching on his smartphone.
Portrait of teacher looking at camera and explaining topic in the classroom against blackboard
College, portrait and man student in a bookstore for studying, learning or knowledge with books. Education, library and young male with a college scholarship standing in the academic study area.
Indoor shot
Munich, Bavaria, Germany, March 18th 2007, building of Staatliche Antikensammlung, Koenigsplatz with woman and dog going for a walk there
Portrait of a librarian
Free Images: "bestof:Fotothek df tg 0005026 Porträt ^ Universität ^ Professor ^ Mathematik ^ Astronomie.jpg Scan Deutsche Fotothek df_tg_0005026 color 2008 MIK-Center Berlin GmbH"
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