Old teacher in front of green board

---

Size: 5803px × 3874px
Photo credit: © Elnur Amikishiyev / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: academic, aged, blackboard, board, chalkboard, class, classroom, college, demonstrating, discussing, education, educational, elder, elderly, exam, experienced, explaining, graduation, green, high, knowledge, learn, learning, lecture, lecturer, lesson, man, mature, mentor, mentoring, older, pointing, presenting, school, science, secondary, senior, showing, study, studying, teacher, teaching, training, tutor, tutoring, university