在实际教学中,我们发现,学生在解题时存在两大问题:一是许多同学尽管能知道一些解题的思路与方法,但结果往往容易算错,究其原因,很多情况下是条件不能用足,一些隐含的条件未能被挖掘,从而导致结果有偏差;二是很多同学在解题时思维呆板,思路较窄,所以方法比较单一,笔者认为,注重题 In practical teaching, we found that students have two major problems in solving problems: First, many students can understand the ideas and methods of problem solving. However, the results are often easily miscalculated. The reasons for this are often inconvenient. With full use, some implied conditions have not been excavated, leading to bias in the results. Second, many students are inflexible and have narrow ideas when solving problems. Therefore, the method is relatively single, and the author believes that the problem is focused.