小数乘法是人教版小学数学第九册第一单元的教学内容,在这一单元的教学实践中,发现学生在作业中总是出现计算方面的各种不同错误。如何充分利用好这些错误资源,变废为宝,从而有效纠正学生的错误呢?在本单元复习教学设计中,我预设了一个“展错例、析错因、找对策”的教学环节,并在课前布置学生以小组为单位收集本组成员或班上其他同学比较有代表性的错例,分类整理后,分析错误原因和寻找纠正错误的对策,上课时进行展示。以下是课堂教学中各小 Fractional multiplication is the teaching content of the first unit of the ninth edition of the PEP Edition. In the teaching practice of this unit, students find that there are always various mistakes in calculation in their work. How to make full use of these wrong resources, turning waste into treasure, so as to effectively correct the mistakes of students? In this unit reviewing the teaching design, I preset a teaching example of " And arrange the students before the class to collect the group members or other students in the class more representative of the wrong cases, classified, analyze the causes of errors and to find ways to correct errors displayed in class. The following is a small classroom teaching