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most of the jigsaw puzzles are brightly colored and with various patterns, which can effectively attract children's eyes. children will concentrate on the jigsaw puzzle and think when playing with this toy, thus promoting the development of children's vision observe the correct spelling on the puzzle example. the puzzle can also let children know that "a whole" is composed of "many parts" and that many "parts" can piece together a "whole" children need to sit down while playing puzzles, so that they can sit down and do one thing. cultivated children's patience and concentration.syi