Focus selettivo degli studenti che ascoltano gli insegnanti in aula - Foto e immagini stock

Rear view of teacher performing lecture for young students

Bright young woman in casual wear calling on cellphone analyzing project having fun with colleagues sitting on sofa in office

Side view of young women coworkers sitting at table at meeting and talking about ideas for new business project during workday

African american student with digital tablet listening music in headphones in lecture hall

Portrait of cheerful african american female owner of fashion store having meeting with designers crew for discuss new collection, multiracial crew of dressmakers share creative ideas and sketches

Multicultural students with laptop and digital tablet listening teacher in lecture hall

Smiling multicultural students with laptop in lecture hall

Smiling multiethnic students looking at each other talking in university

Multicultural students in glasses with notebooks in lecture hall

Partial view of african american student pointing with finger at notebook

Smiling african american student in glasses standing near flipchart

Smiling african american student with digital tablet raising hand in lecture hall

Happy african american businesswoman smiling near group of women during seminar

Cropped view of student in denim shirt holding pen and notebook