Barbu mature homme professeur est lecture conférence parler et gestuelle tandis que les étudiants sont à l'écoute et l'écriture assis à des tables dans la salle de classe universitaire spacieuse . - Photo & image de stock

Multi-ethnic group of students is answering teachers questions, smart young people are talking and smiling sitting in tables while teacher is asking them checking knowledge.

Young people college students are laughing and talking to friendly professor who is standing in front of them, speaking and gesturing. Education, modern lifestyle and youth concept.

Bearded mature man professor is reading lecture talking and gesturing while students are listening and writing sitting at tables in spacious university classroom.

Small group of students is talking to male teacher, young man is raising hand and asking question, smiling educator is listening and gesturing. Learning and teaching concept.

Male professor in casual clothes is talking to group of students sitting at tables in classroom and making notes. Large lecture hall with desks, chairs and large windows is visible.

Male professor in casual clothes is talking to group of students sitting at tables in classroom and making notes. Large lecture hall with desks, chairs and large windows is visible.

Focus on hipster male student in glasses using laptop computer while preparing for exams in university library indoors with his classmates studying books

Focus on hipster male student in glasses using laptop computer while preparing for exams in university library indoors with his classmates studying books

Concentrated asian girl student preparing for examination and writing notes while sitting at table at university library indoors with her classmates studying books

Multi ethnic group concentrated students talking and preparing for examination while sitting at the table in university library indoors

Group of concentrated students preparing for examination while sitting at table in university library indoors

Group of international students have fun smiling and making selfie photos on smartphone camera at university library indoors. Cheerful friends have rest while prepare for examination