Ключевые слова: activity, baby, ball, block, blocks, brick, building, business, car, child, childhood, children, circle, closeup, color, colorful, constructing, construction, constructor, cup, day, developing, development, education, educational, figure, fun, game, kid, kindergarten, learn, learning, letter, multi, pile, plastic, play, playful, pollution, preschool, puzzle, round, school, shape, stack, toddler, toy, wood, wooden,