Keywords
14-15 years, 16-17 years, 50-54 years, african-american ethnicity, asian ethnicity, assistance, caucasian ethnicity, classroom, concentration, day, desk, digital tablet, education, five people, horizontal, indoors, latin american and hispanic ethnicity, mature men, mixed race person, native american ethnicity, school, schoolboy, schoolgirl, student, teacher, teaching, teenage boys, teenage girls, waist up, wireless technology, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, u12074406