“数学基本活动经验”是“课标”(2011年版)提出的课程总目标中的“四基”之一,也是与“课标”(实验稿)的重要区别之一。如何结合具体的教学内容,将此目标真正落实到位,现结合一道习题的教学,谈谈自己的体会。小学一年级学生注意分配力不强,常常容易选错问题信息而出现差错。怎样利用差错帮助学生积累基本的解决实际问题经验,渗透数学学习中的对应思想呢?课堂上,对于图1中的问题(1),求小汽车模型比 “Basic Experience of Mathematics ” is one of the “Four Basics” in the “Curriculum Standard” (2011 Edition), which is also an important difference from the “Standard” (experimental draft) one. How to combine the specific teaching content, this goal really put into place, is a combination of exercises teaching, talk about their own experience. Primary school students pay attention to the distribution of power is not strong, often easy to choose the wrong information error. How to use mistakes to help students accumulate basic experience to solve practical problems, to penetrate the corresponding ideas in mathematical learning? In class, for the problem in Figure 1 (1), find the car model than