Ключевые слова: academic, apple, back to school, black, blackboard, blank, board, book, chalk, chalkboard, college, colourful, computer graphic, copy space, desk, digital, digitally generated, education, elementary, elementary school, eraser, floor, higher education, knowledge, learn, learning, literacy, pencil, pile, plank, red, school, shiny, stack, table, textbook, university, white, white background, wood, wooden,