Old professor physicist and student in the classroom

---

Size: 6016px × 4016px
Photo credit: © Elnur Amikishiyev / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: academic, ball, balls, blackboard, board, class, classroom, clicker, college, cradle, discussing, education, exam, executive, explaining, giving, happy, learning, lecture, lecturer, lesson, man, meditating, meditation, mentoring, newton, pendulum, physicist, physics, preparation, preparing, professor, rocker, school, science, stress, student, study, studying, teacher, teaching, thumb, thumbs, trainee, training, tutoring, university