Keywords
16-17 years, 18-19 years, 20's, 20-25, 20-30, 20s, 25-29 years, 25-30, 3, adult, african, african american, african ethnicity, african-american, african-american ethnicity, afro american, afro-american, arm, arms raised, black, caucasian, cheerful, chemistry, chemistry class, child, class, classmate, classroom, college, color, color image, colour, communicating, confidence, confident, discussing, discussion, education, enjoyment, equation, examining, explaining, eyeing, fellow, fob, formula, gaiety, gentleman, gesturing, girl, glad, gleeful, guy, happy, head & shoulders, head and shoulders, human, human being, indoor, indoors, information, inside, instructing, intelligence, jolly, juvenile, kid, knowledge, learning, lighthearted, looking, male, man, merry, minor, motioning, multi-ethnic group, multicultural, multiculturalism, observing, of african descent, people, person, photography, pointing, positive, pupil, raised, raising, satisfaction, school, schoolmate, schoolroom, science, seated, seeing, self-assured, sitting, smile, smiling, speaking, standing, student, studying, talking, teen, teenage, teenage girl, teenage girls, teenager, three, three people, together, togetherness, tuition, twenties, twenty, university, vertical, viewing, waist up, waist-up, watching, western european, whiteboard, wisdom, young, young adult, young men, youth, youthful, 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, bld200320