Un disparo de adolescente pidiendo ayuda a su maestro durante un examen en un aula. - Foto e imágenes de stock

A child educated is a child enlightened. teenage boy asking his teacher for help during an exam in a classroom

Group of Caucasian high school students taking an exam at classroom.

Group of high school students doing exam at classroom.

Side view of schoolchildren sitting in row and teacher at table with laptop in classroom during lesson

Group of high school students doing exam at classroom.

Cropped shot of an attractive young university student taking notes in class.

Education, university student and man reading book in classroom, studying or assignment research. Learning, college and person with textbook, exam or test preparation and knowledge search at desk

Studying, learning and students in university classroom with digital tablet screen and notebook mockup for knowledge, education and teaching. Group of people in college with books and reading course.

Discovering new apps that will help us ace the test. university students looking at a tablet in class

Studying, learning and students in university classroom with digital tablet screen and notebook mockup for knowledge, education and teaching. Group of people in college with books and reading course.

Cropped shot of university students sitting in class.

Working on a group project. a group of young university students working together in class

They always give their full attention. a cheerful young teacher giving class to a group of school kids inside of a school during the day