Ключевые слова: activity, adhesive, amusement, chalk, child, childhood, cipher, court, distance, drawings, education, elastic material, elementary school, exercise, fiber, fun, game, gray, ground line, gymnastic, hop, hopscotch, jump, marking, meter, number three, outdoor, pitch, plastic material, play, playground, raveled, rubber, schoolyard, scotch, sport, square, stage, start, strip, surface, symbol, third place, tilled floor, toss, training, wet, white paint, work out zone, yard,