Chalkboard blackboard with frame isolated – classroom for lessons – board, education, school, green, empty, blank, billboard, design, banner, teach, learning, study, idea, copy space, 3d illustration, 3d render, menu, isolated, backdrop, white, sign, pattern, brick, abstract, interior, advertising, renovation, university, college, copy, class, write, announcement, texture, wooden, frame, grunge, text, drawing, black, message, concept, chalk سبورة تعليم طباشير تدريس مدرسة فصل تلاميذ لوحة وسيلة تعليمية