Un uomo insegna appassionatamente a un gruppo di bambini in una classe luminosa. - Foto e immagini stock

Cheerful pupil holding laptop near teacher pointing with hand

Mature teacher smiling near pupils and devices

Bearded businessman with laptop talking to colleagues sitting at conference table in meeting room

Excited woman looking at notebook in hand of man sitting at workplace in office, with blurred multicultural colleagues on background

Attractive businesswoman with african american colleague standing near desk in meeting room

Bearded businessman with digital tablet talking to asian woman during meeting with colleagues

Smiling woman looking at businessman near laptop during job interview in office

Multiethnic business people with papers talking near flipchart in office

Businessman holding laptop near interracial colleagues and table in office

Cheerful bearded team lead with laptop touching shoulder of colleague working in meeting room