Un enseignant sympathique parle à des élèves joyeux qui posent des questions pendant que les jeunes lèvent la main et répondent assis à leur bureau. École secondaire, éducation et concept de jeunesse . - Photo & image de stock

Multiethnic group of young people is listening to teacher and smiling then raising hands. Pupils and tutors concept.

Pretty Caucasian girl high school student rising arm to ask the question.

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.

Group of students raising hands in class on lecture

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

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

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

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

Portrait of two young handsome multi-ethnic friends going down big white glassy corridor in college talking smiling passing by standing female students and waving hands to them.