原方案以闯关游戏调动了幼儿的积极性,其中直线排列中骨牌的间隔,曲线排列中关键点(转弯处、交叉口等)骨牌的摆放,合作排放时同伴间的配合等,都是幼儿可能遇到的难点。为了有效突破以上难点,我认为要给予幼儿足够的探索时间和空间。原方案在“挑战一”中规定操作时间为3分钟,在“挑战二”中规定操作时间为5分钟。骨牌的排放有一个 The original program to pass through the game to mobilize the enthusiasm of young children, including straight line arrangement of the medal interval, the key points in the curve arrangement (corner, intersections, etc.) dominoes placed in collaboration with discharge partners, etc., are young children may Difficulties encountered. In order to effectively break through the above difficulties, I think we should give young children sufficient time and space to explore. The original program in “challenge a ” in the provisions of the operation time is 3 minutes, “challenge two ” in the provisions of the operation time is 5 minutes. There is a discharge of dominoes