Young female student in classroom listening a lecturer.
Male professor sketching on a whiteboard to explain the topic. Many attentive university students listening to a lecturer in a classroom.
Students attentively listening to male teacher and communicating in the classroom
high school students with school uniform sitting in the classroom and attentively listening to a lecture
College students in school uniform preparing for the beginning of the lesson. High school students in the classroom
Schoolchildren in school uniform puts on a backpack to go home. Slow motion. High school students in the classroom
Two students whispering and talking to each other during a chemistry lecture in a high school, college or university classroom
A distracted male and female student talking to each other during a chemistry lecture in a high school or college classroom
Portions of this page translated by Google.