Blackboard

Keywords:

blackboard, chalk, chalkboard, board, education, black, school, class, white, lesson, background, drawing, blank, classroom, write, texture, concept, message, empty, communication, teach, learn, space, billboard, teacher, copy, close, text, horizontal, elementary, closeup, frame, information, wood, symbol, handwriting, note, color, sign, copyspace, old, advertisement, business, graph, arrow, up,