Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
People learning in a lecture hall.
Confident bald mature professor in smart casualwear standing by desk in front of audience and explaining subject of lecture to students
Portrait a male teacher at a university sitting in a comfortable leather chair at the department.
Chemical formula on blackboard in classroom or laboratory.
Man standing at chalkboard explaining Pythagorean theorem while pointing at triangle drawn on board, with colorful magnets and wall clock in background
Interested office workers attending meeting in spacious boardroom. Discussion in modern coworking zone with business team in company
Young white politician in a suit pronouncing the speech in close-up against the blue background
Professor teaching on blackboard
One Caucasian male professor sitting on the desk in the classroom and holding a notebook and a pen, checking who is absent.
Portrait of teacher looking at camera and explaining topic in the classroom against blackboard
Professor writing on the blackboard.
An adult teacher at the blackboard explains a task in higher mathematics. Selective focus
Science teacher writting at blackboard. Education and physics.
elderly man with a serious expression sits at a table in a busy, well-lit room, hands clasped. He reflects on future issues like climate change, job losses due to automation, and power concentration
Portrait photo of a young white politician pronouncing a speech, standing against the blue background with American flag, we see him from the was it up
An astrophysicist is sitting in front of a black board and a laptop computer.
Portrait of a young professor teaching about AI
Male elderly professor lecturing students in amphitheater.
The teacher started a countdown on the phone during the exam for completing the task.
A professor writing on the blackboard.
Annoyed elderly man holds a marker, expressing irritation over an overlooked obvious point, standing against a plain grey blackboard
University professor with stick, cross processed
Young mathematician looks at formula on blackboard to solve scientific problem in classroom
geometry drawing on page of old yellow book as background, algebra book as background
The male teacher used white chalk to write on the blackboard to teach students in a class
One young professor having classes about modern topics
Young white guy teacher near the blackboard
man with a mad hair and a lab coat in front of a blackboard,, holding a piece of chalk
Free Images: "bestof:Gerard Laman (mathematician).jpg Gerard Laman is giving a lecture at the Sobolev Institute of Mathematics in Novosibirsk Russia during a conference dedicated to"
Alexander_I_by_François_Gérard.jpg
Gerard Laman (mathematician).jpg
PJCameron 2013.JPG
Toponogov.jpg
John_Cheke.jpg
Sir_John_Cheke,_tutor_of_Edward_VI_and_the_man_who_identified_the_individuals_he_had_known_who_were_sketched_by_Hans_Holbein.jpg
PJCameron 2012.JPG
IM SO RAN.jpg
PeterCameron.JPG
100913-N-0000R-001 (5011914635).jpg
Internet i Nauka 15 let puti.JPG
L-15-05-29-A-031 (18160905658).jpg
Delabart_Ledyanye_gory_v_Moskve_na_Neglinnoj_ulice_1795.jpg
Worker_Takes_a_Break_during_Construction_of_the_new_Baptist_church_building_at_Orenburg,_USSR,_1986.jpg
L-15-05-29-A-026 (18161012230).jpg
L-15-05-29-A-024 (17726137834).jpg
L-15-05-29-A-032 (18161010710).jpg
Terms of Use   Search of the Day