Happy male student talking while attending a lecture in the classroom.
Computer science teacher giving lecture to group of high school students in the classroom.
Young student communicating with her friend during a lecture in the classroom.
Close-up of female teacher giving lecture to group of students in the classroom.
Pensive female student learning at university classroom.
High school students paying attention during a class in the classroom.
Black female professor talking to students during lecture in the classroom.
Female student e-learning on laptop during computer class at the university.
High school teacher talking to her students during lecture in the classroom.
Happy mid adult students cooperating while using laptop in the classroom.
African American teacher assisting a schoolgirl during a class in the classroom.
Happy university students applauding to their teacher during lecture in the classroom.
African American professor using touchpad while assisting her student on a class at the university.
African American student talking to his teacher during a class at the university.
Mature teacher assisting his mid adult student who is learning on laptop in the classroom.
University friends cooperating while studying together on a class in the classroom.
Happy mature professor giving lecture to adult students in the classroom.
Happy schoolgirl talking to a teacher while learning in the classroom.
Mature man raising his arm while attending lecture at university classroom.
African American professor talking to her students after a lecture in the classroom.
Happy professor assisting his black female student with a lecture in the classroom.
Adult students group listen to professor
Please, tell us the answer!
Portrait of mid adult male student standing in the classroom and looking at camera.
Mature teacher giving lecture to group of university students in the classroom.
Mid adult black student communicating with her classmate in the classroom.
Black female teacher writing on whiteboard while giving lecture in the classroom.
Happy female students talking during a class at university classroom.
Happy elementary teacher using laptop while teaching her students in the classroom.
Happy mature teacher assisting his student with a lecture in the classroom.
