Ключевые слова: alarm, back, background, black, blackboard, board, border, card, chalk, chalkboard, children, clock, color, colorful, copy, design, draw, drawing, educate, education, empty, frame, glass, green, illustration, isolated, kids, pencil, ruler, school, school background, school board, space, study, supplies, teach, template, text, white, wood, wooden, write,