Male Asian Bachelor Writing on Blackboard

chalkboard - visual aid education teaching language chalk - art equipment student intelligence classroom text post-secondary education hieroglyphics stem - topic studying one person 1080p internet university film - moving image men touch screen young adult wall - building feature portable information device one young man only occupation scientist presentation - speech ideas smart phone hd format science mobile phone people manufactured object portability horizontal equipment young men russia adult one man only laboratory wireless technology only men non us film location telephone adults only improvement working bachelor well-dressed indoors