统编初中数学第三册,采用双箭头符号“(?)”书写几何证明,比传统的文字叙述法更加简明、清晰,逻辑结构更加严谨,是论证格式上的重要改进。但是,当前对这个问题看法不一,有的教师主张先过文字叙述关,箭头法证题以后再教。但这样处理将有碍学生自学,不利于他们逻辑思维能力的发展。事实上,如果我们能恰当地处理教材,注意由浅入深,分散难点,改进教法,用双箭头符号推 The third volume of junior middle school mathematics was compiled and the geometric proof was written using the double-arrow symbol “(?)”, which is more concise and clear than the traditional text narration method, and the logic structure is more rigorous. It is an important improvement in the format of the argument. However, the current view on this issue is not the same. Some teachers advocate that the narrative is first written off, and the arrow question is taught later. However, such treatment will prevent students from self-study, which is not conducive to the development of their logical thinking ability. In fact, if we can deal with textbooks properly, we need to pay attention to it from shallow to deep, disperse difficulties, improve the teaching method, and push it with the double arrow symbol.