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一、情境引入师:同学们,你们喜欢玩游戏吗?(喜欢)老师也喜欢玩,今天老师将为你们介绍一款全世界的聪明人都在玩的数学游戏——“数独”游戏。(板书:数独)师:看到这个名字,你想到了什么?生_1:我想到这款游戏肯定和数字有关。生_2:我想到它里面的数字可能是独一无二的。师:同学们真有想象力。这几幅图就是数独大赛的现场,至今北京市已经成功地举办了八届数独大赛,你们想不想试一试?
First, the situation introduced division: students, do you like to play games? (Like) teachers also like to play, today the teacher will introduce you to a world of smart people are playing mathematical games - "Sudoku game. (Blackboard: Sudoku) Teacher: What do you think of when you saw this name? Health_1: I think this game is definitely related to numbers. Health _2: I think the numbers inside it may be unique. Teacher: The students really have imagination. These figures are the scene of the Sudoku contest, so far Beijing has successfully held the eighth Sudoku contest, do you want to give it a try?