从调查分析可知:数学后进生大致有两种类型:一类是智力薄弱型,他们反应迟钝,记忆力差,注意力涣散;另一类是智力正常型,他们在学习上懒散、马虎,知识缺漏多,缺乏兴趣,导致学习信心不足,有自 From the investigation and analysis we can see that there are basically two types of post-math students: one is intellectual weakness, they are unresponsive, have poor memory, and distract their attention; the other is normal intelligence. They are lazy, sloppy and lack of knowledge in learning Many, lack of interest, leading to lack of confidence in learning, have since