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Multinational group of cheerful students taking an active part in a lesson while sitting in a lecture hall.

Multinational group of cheerful students taking an active part in a lesson while sitting in a lecture hall.

Young students listening the lecture with interest on university. Close-up of young professor's hands

Young students listening the lecture with interest on university. Close-up of young professor's hands

$Businessman sitting on a chair and studying math formulas on blackboard$

Businessman sitting on a chair and studying math formulas on blackboard

3D Realistic Professional Old Professor Teacher Man Character Speaking or Talking with Blank Blackboard Isolated in White Background. Illustration

3D Realistic Professional Old Professor Teacher Man Character Speaking or Talking with Blank Blackboard Isolated in White Background. Illustration

University professor standing at the rostrum in front of backboard with formulas giving a lecture on quantum physics. Flat style vector illustration isolated on white background.

University professor standing at the rostrum in front of backboard with formulas giving a lecture on quantum physics. Flat style vector illustration isolated on white background.

management team discussing papers as they are sitting at the desk in a modern office

management team discussing papers as they are sitting at the desk in a modern office

Sexy girl with glasses Strict teacher a long black skirt and striped shirt with a pointer in his hand isolated on white

Sexy girl with glasses Strict teacher a long black skirt and striped shirt with a pointer in his hand isolated on white

Woman pin-up style with eyeglasses and blackboard

Woman pin-up style with eyeglasses and blackboard

3D Realistic Professional Funny Old Professor Teacher Man Character Holding Book with Eyeglasses Isolated in White Background. Illustration

3D Realistic Professional Funny Old Professor Teacher Man Character Holding Book with Eyeglasses Isolated in White Background. Illustration

Speaker giving a talk on corporate Business Conference. Audience at the conference hall. Business and Entrepreneurship event. Panoramic composition.

Speaker giving a talk on corporate Business Conference. Audience at the conference hall. Business and Entrepreneurship event. Panoramic composition.

Closeup portrait, joyful elderly gentleman in white striped shirt holding up two fingers, isolated outside outdoors background

Closeup portrait, joyful elderly gentleman in white striped shirt holding up two fingers, isolated outside outdoors background

female lecturer with students in an exam in a classroom

female lecturer with students in an exam in a classroom

lecturer on class with young students in lecture hall

lecturer on class with young students in lecture hall

Mad professor in lab coat and green rubber gloves, cartoon style vector illustration isolated on white background. Funny laughing white-haired scientist in four different postures

Mad professor in lab coat and green rubber gloves, cartoon style vector illustration isolated on white background. Funny laughing white-haired scientist in four different postures

male student with a teacher in classroom

male student with a teacher in classroom

Young female teacher near blackboard teaching student in classroom at school, college or university. Flat design cartoon woman character.

Young female teacher near blackboard teaching student in classroom at school, college or university. Flat design cartoon woman character.

Business woman lecturing at Conference Audience at the lecture hall

Business woman lecturing at Conference Audience at the lecture hall

Close up view of student taking notes during lecture

Close up view of student taking notes during lecture

Lecturer and multinational group of students in an auditorium

Lecturer and multinational group of students in an auditorium

Smiling female lecturer helping student during her class. Student in a lecture with helpful teacher.

Smiling female lecturer helping student during her class. Student in a lecture with helpful teacher.

Professor giving presentation in lecture hall at university. Participants listening to lecture and making notes.

Professor giving presentation in lecture hall at university. Participants listening to lecture and making notes.

Professor teaching

Professor teaching

Funny Scientist Or Professor Different Poses 2 Collection Set

Funny Scientist Or Professor Different Poses 2 Collection Set

3D Realistic Nerd School Boy Student or Professor with Eyeglasses Happy Smiling with New Great Ideas in Blue Background Space for Texts. Vector Illustration

3D Realistic Nerd School Boy Student or Professor with Eyeglasses Happy Smiling with New Great Ideas in Blue Background Space for Texts. Vector Illustration

Teacher, tutor or professor with headset, laptop and camera in her office explaining something at an online lesson or video lecture, webinar

Teacher, tutor or professor with headset, laptop and camera in her office explaining something at an online lesson or video lecture, webinar

beautiful female teacher in formal wear writing in notebook and looking at camera in classroom

beautiful female teacher in formal wear writing in notebook and looking at camera in classroom

Crazy chemist doing experiment chemical laboratory

Crazy chemist doing experiment chemical laboratory

Successful businessman carrying an office binder under his arm as he stands smiling at the camera with a thoughtful expression

Successful businessman carrying an office binder under his arm as he stands smiling at the camera with a thoughtful expression

Rear view of a puzzled businessman in front of a huge blackboard try to solve hard mathematics calculation, formula and equations. Thinking of project ideas and business planning concept.

Rear view of a puzzled businessman in front of a huge blackboard try to solve hard mathematics calculation, formula and equations. Thinking of project ideas and business planning concept.

Attractive aged businesswoman, teacher or mentor coach speaking to young people, senior woman in glasses teaching audience at training seminar, female business leader speaker talking at meeting

Attractive aged businesswoman, teacher or mentor coach speaking to young people, senior woman in glasses teaching audience at training seminar, female business leader speaker talking at meeting

Happy friendly young teacher or pst graduate male student standing holding a tablet in front of a blank chalkboard

Happy friendly young teacher or pst graduate male student standing holding a tablet in front of a blank chalkboard

Portrait of smiling senior businesswoman wearing glasses with businesspeople at background, happy older team leader, female aged teacher professor or executive woman boss looking at camera, head shot

Portrait of smiling senior businesswoman wearing glasses with businesspeople at background, happy older team leader, female aged teacher professor or executive woman boss looking at camera, head shot

beautiful female teacher in formal wear and glasses holding notebook in classroom

beautiful female teacher in formal wear and glasses holding notebook in classroom

Thank You Teacher greeting for World teacher's day concept with school student back view drawing doodle of of learning education graphic freehand illustration icon on black

Thank You Teacher greeting for World teacher's day concept with school student back view drawing doodle of of learning education graphic freehand illustration icon on black

chemist crazy about his experiment smell his experiment

chemist crazy about his experiment smell his experiment

Multinational group of cheerful students taking an active part in a lesson while sitting in a lecture hall.

Multinational group of cheerful students taking an active part in a lesson while sitting in a lecture hall.

Sausage dachshund dog with pencil or pen in mouth

Sausage dachshund dog with pencil or pen in mouth

A vector illustration of college students in class with professor teaching

A vector illustration of college students in class with professor teaching

group of students study with professor in modern school classroom

group of students study with professor in modern school classroom

Young man watching video at desk indoors. Online learning

Young man watching video at desk indoors. Online learning

African foreign teacher teaching science in the classroom.

African foreign teacher teaching science in the classroom.

Raised hands and arms of large group of people in class room, audience voting in professional education surrounding, selective focus with anonymous people.

Raised hands and arms of large group of people in class room, audience voting in professional education surrounding, selective focus with anonymous people.

teacher woman with laptop online education vector illustration design

teacher woman with laptop online education vector illustration design

International student making individual online testing, Teacher creates sense of community and belonging in the classroom, Great teachers find out what makes students interested and use it,

International student making individual online testing, Teacher creates sense of community and belonging in the classroom, Great teachers find out what makes students interested and use it,

Teacher and student having fun learning. Happy school girl writes notes in notebook. Smiling professor explains subject to young student. Girl taking extra classes. Coworkers at work in office

Teacher and student having fun learning. Happy school girl writes notes in notebook. Smiling professor explains subject to young student. Girl taking extra classes. Coworkers at work in office

Crazy professor / scientist / lecturer with mad hairstyle wearing horn rimmed glasses and fake mustache standing in front of a whiteboard and pointing it with happy goofy face

Crazy professor / scientist / lecturer with mad hairstyle wearing horn rimmed glasses and fake mustache standing in front of a whiteboard and pointing it with happy goofy face

Tutor with class of students

Tutor with class of students

Funny Professor Cartoon Character. Collection Set

Funny Professor Cartoon Character. Collection Set

Senior chemistry professor writing on the board while having a chalk and blackboard lecture

Senior chemistry professor writing on the board while having a chalk and blackboard lecture

Confident and intelligence. Confident grey hair senior man in formalwear keeping arms crossed and looking at camera while standing against bookshelf

Confident and intelligence. Confident grey hair senior man in formalwear keeping arms crossed and looking at camera while standing against bookshelf

A professor in 4 different poses.

A professor in 4 different poses.

one caucasian man professor teaching beckoning pointing empty copy space isolated studio on white background

one caucasian man professor teaching beckoning pointing empty copy space isolated studio on white background

Beautiful smiling girl on a green background.

Beautiful smiling girl on a green background.

Teacher with a group of high school students in classroom

Teacher with a group of high school students in classroom

Funny Scientist Or Professor Cartoon Characters Set Collection 7

Funny Scientist Or Professor Cartoon Characters Set Collection 7

Confident older businesswoman in glasses looking at camera, middle aged senior female professional, mature lady teacher business coach head shot portrait isolated on white grey studio background

Confident older businesswoman in glasses looking at camera, middle aged senior female professional, mature lady teacher business coach head shot portrait isolated on white grey studio background

Vector illustration of six teachers on a white background

Vector illustration of six teachers on a white background

Teacher with a group of high school students in classroom

Teacher with a group of high school students in classroom

Professor of chemistry leading lecture in University.

Professor of chemistry leading lecture in University.

Crazy scientist got the great idea in laboratory with bulb symbol

Crazy scientist got the great idea in laboratory with bulb symbol

Teacher writing on a register in a classroom

Teacher writing on a register in a classroom

Multinational group of students in an auditorium

Multinational group of students in an auditorium

Chalkboard with stack book

Chalkboard with stack book

Young female teacher near blackboard teaching student in classroom at school, college or university. Flat design cartoon woman character

Young female teacher near blackboard teaching student in classroom at school, college or university. Flat design cartoon woman character

Image of graduation black hat over old books next to graduation on wooden desk. Education and back to school concept

Image of graduation black hat over old books next to graduation on wooden desk. Education and back to school concept

College professor giving lecture and standing at desk

College professor giving lecture and standing at desk

Happy students talking with their teacher in the library

Happy students talking with their teacher in the library

Professor cartoon teaching

Professor cartoon teaching

Happy Caucasian Professor Using A Pointer Stick

Happy Caucasian Professor Using A Pointer Stick

male student with a teacher in classroom

male student with a teacher in classroom

Funny Scientist Or Professor Smiling And Waving For Greeting

Funny Scientist Or Professor Smiling And Waving For Greeting

Teacher sitting in classroom and looking at students who raised their arms

Teacher sitting in classroom and looking at students who raised their arms

Teacher at school in the classroom ready for work

Teacher at school in the classroom ready for work

Funny Scientist Or Professor Smiling And Waving For Greeting With Speech Bubble

Funny Scientist Or Professor Smiling And Waving For Greeting With Speech Bubble

Portrait of happy teacher and her students inside the classroom

Portrait of happy teacher and her students inside the classroom

Hispanic Professor Woman

Hispanic Professor Woman

one man caucasian professor teacher teaching reading an ancient book isolated studio on white background

one man caucasian professor teacher teaching reading an ancient book isolated studio on white background

Business person standing against the blackboard with a lot of data written on it

Business person standing against the blackboard with a lot of data written on it

Smiling Scientist Or Professor With Good Idea

Smiling Scientist Or Professor With Good Idea

Businessman is looking at a huge hand drawn chalkboard in a classroom

Businessman is looking at a huge hand drawn chalkboard in a classroom

Friendly male teacher relaxing in the classroom in front of the blackboard with his chin resting on his hands on the desk

Friendly male teacher relaxing in the classroom in front of the blackboard with his chin resting on his hands on the desk

Business person standing against the blackboard with a lot of data written on it

Business person standing against the blackboard with a lot of data written on it

Multiracial university students with professor conversing in library

Multiracial university students with professor conversing in library

Senior chemistry professor giving a lecture in front of classroom full of students (shallow DOF; color toned image)

Senior chemistry professor giving a lecture in front of classroom full of students (shallow DOF; color toned image)

Senior researcher using a computer in the lab while working on an experiment (color toned image)

Senior researcher using a computer in the lab while working on an experiment (color toned image)

Cartoon professor or teacher character isolated on white illustration

Cartoon professor or teacher character isolated on white illustration

Portrait of a young man writing on chalkboard

Portrait of a young man writing on chalkboard

Full length portrait of a male teacher isolated on white background

Full length portrait of a male teacher isolated on white background

Professor of chemistry leading lecture in University.

Professor of chemistry leading lecture in University.

Professor cartoon pointing his hand

Professor cartoon pointing his hand

College tutor with student

College tutor with student

Female teacher assisting student in using laptop at desk in classroom

Female teacher assisting student in using laptop at desk in classroom

Portrait of happy senior female teacher with arms crossed standing against chalkboard

Portrait of happy senior female teacher with arms crossed standing against chalkboard

Confident professor. Confident grey hair senior man in formalwear keeping arms crossed and looking at camera while leaning at the table and with bookshelf in the background

Confident professor. Confident grey hair senior man in formalwear keeping arms crossed and looking at camera while leaning at the table and with bookshelf in the background

Professor Giving Thumbs Up

Professor Giving Thumbs Up

teacher with a group of high school students in classroom

teacher with a group of high school students in classroom

Cheerful smiling funny boy on a green background.

Cheerful smiling funny boy on a green background.

one caucasian man professor teaching beckoning pointing empty copy space isolated studio on white background

one caucasian man professor teaching beckoning pointing empty copy space isolated studio on white background

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