Please listen to me. The so-called math problems train people's ability to solve problems. Whether it is a 9 clip or a 13 clip, we will know when we go back to the experiment. If 9 clips can really solve the problem of drying 8 handkerchiefs, then 9 clips are the correct answer. The social measure of market talents is not how many theories can be understood, but how to solve the biggest problem with the least resources. If 9 clips and 65438+, I basically understand what the math teacher means. He may mean that because of the handkerchief and the clip, the clips at both ends of the middle rope are loose, so in order to prevent this, two more clips are fixed at the left and right ends. If that's what you mean, you can't say that he is wrong. In short, it is very important for parents to set an example to educate their children. When you meet a teacher who pays more attention to theory and even ignores the actual effect, it is better to let the children understand the teacher's meaning and ideas at this time. After all, the teacher is teaching children the ability to take exams, and then explaining to them that this is just training their thinking ability. There are more practical methods in reality. I wonder if you are satisfied with my answer? If you are satisfied, don't forget to adopt it. Thank you.