School, classroom, schoolboys, schoolgirls, blackboard, sitting, resting, head, view, boredom, concentration, books, batches, writing, natural sciences, physics, education, achievement, secondary education, people, teenager, girl, boy, formulas, calculati

---

Size: 4000px × 2667px
Photo credit: © Peter Enzinger / Alamy / Afripics
License: Licensed
Model Released: Yes

Keywords: 15, 16, achievement, batches, blackboard, books, boredom, boy, calculating, classroom, concentration, education, formulas, girl, head, model, natural, people, physics, released, resting, school, schoolboys, schoolgirls, sciences, secondary, sitting, teenager, view, writing, years