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笔者今年参加了南通市中考数学第25题的阅卷,发现这一题学生的解法较多,这些不同的解法产生的原因是复杂的,我想把学生的解法整理出来让教师对学生例题教学和一题多解的引导有一点帮助.当然也有不少错误值得我们老师反思,学生典型错误是教学的重要资源,如何利用这些错误使得学生在今后的学习中避免出现同样的问题,以及对学困生指导上希
This year, the writer participated in the examination of Nantong Mathematical Examination No. 25 and found that there are many solutions to this problem. The reasons for these different solutions are complicated. I want to assemble the students’ solutions to allow the teachers to teach students examples. The guidance of multiple solutions to a problem is helpful. Of course, there are many mistakes worth reflecting on our teachers. Typical mistakes of students are an important resource for teaching. How to make use of these mistakes will enable students to avoid the same problems in the future study and to study difficulties. Health guidance