Today, I write this critical letter to you with guilt and regret, to show you my deep understanding of the bad behavior of not doing math homework, and to say that I will never make such a mistake again.

This is a very profound exam. I am ashamed of the mistake I made this time. I really shouldn't have failed to finish my math homework. I shouldn't violate the teacher's rules. As students, we should listen to the teacher completely, but this time I didn't pay much attention to what the teacher said. I feel very sorry. I hope the teacher can forgive my mistake. My confession this time is really profound.

However, people always make mistakes. Of course, I know this is no excuse. We should try our best to avoid such mistakes. I hope the teacher can believe my repentance. "People are not sages, to err is human." My bad behavior is not to challenge the teacher's discipline. This is definitely a mistake. What the teacher said is correct. Even if I want to make mistakes, I shouldn't make mistakes in front of you. I feel ashamed. How did this happen?

I believe that the teacher can see my attitude and know that I have a deep repentance attitude towards this matter. I attach so much importance to this matter that I hope the teacher can forgive my mistakes. I can assure my teacher that I won't make such a mistake again.

Today, I really deeply realized my mistake. I know what the teacher said must be observed, and what the teacher said will certainly fulfill her promise. What teachers have to do must be good for our students, so we don't have to challenge teachers' discipline. We are still students, and we have no ability to have the idea of not listening to the teacher. The only thing we students can do is to listen to the teacher, study hard, reassure and trust the teacher.