© Low angle view of pilot trainees using tablet computers at desk in classroom

© Low angle view of pilot trainees studying at desk in classroom

© Pilot trainees looking away while sitting at desk in classroom

© Pilot trainees studying while sitting at desk in classroom

© Pilot trainees reading while sitting at desk in classroom

© Low angle view of teacher teaching students over desktop computer in classroom

© Schoolboys studying in classroom

© Side view of schoolboy writing on blackboard in classroom

© Friends discussing in classroom

© Schoolboys discussing paper in classroom

© Portrait of schoolboy with light bulb drawing on blackboard standing in classroom

© Portrait of smiling schoolboy with light bulb drawing on blackboard standing in classroom

© Boy explaining mathematics to male friends in classroom

© Smiling friends looking at boy using smart phone in classroom

© Side view of teacher with students using computers in classroom

© Boy explaining mathematics to friends while studying in classroom

© Female teacher interacting with students in classroom

© High angle view of teacher with students using computers in classroom

© Schoolboys using desktop computers in classroom

© Students studying while sitting in classroom

© Friends looking at boy using smart phone in classroom

© Boy explaining mathematics to friends in classroom

© Rear view of female teacher explaining mathematics to students in classroom

© Side view of female teacher interacting with students in classroom

© Cropped image of teacher holding student's hand in classroom