Send a text message to scold the teacher

First of all, I will make an analysis of this matter: your teacher was unfair to you at first. To be sure, it is definitely wrong for a teacher to treat students unfairly. So, I'll give your teacher a "this is wrong" judgment first. Judging from your reaction to insulting the teacher by texting later, you must have such a judgment in your heart. Before you make this judgment, you are at the highest point of morality in this matter, and any rational person will stand on your side. However, you then chose the behavior of "insulting by texting", which immediately reversed people's prejudice in the incident, and you stood at a low moral level. It is undoubtedly not worthwhile to lose the initiative because of insulting such wrong and meaningless things. As a teacher, she is unfair to her students, which is her dereliction of duty and fault. But once you insult her, it's your fault as a student, and you take her fault on yourself. The former is unfair to students and insults teachers' mistakes, and many people will choose to ignore them. Of course, it is undoubtedly not a good teacher's fault that your teacher used this situation to call the police. For the present situation, my advice to you is: apologize. Only by apologizing can you regain the lost initiative and stand on the same level as the teacher. For a student, apologizing is a very forgivable behavior, which will undoubtedly bring you and your teacher back to the original point, and this matter can be ended. If she is unfair to you again, then remember not to use abuse to lower her moral status. If you want to solve the problem under the protection of law and morality, you have to put the problem under the law and morality aboveboard. You need to analyze the problem from an objective perspective and make it public in an objective and concise way. Of course, this situation is a bit tightrope. Although it is much better than insulting the teacher, it is easy to be targeted in the future. The best way is to ignore it and let it have nothing to say with its own hard power without involving its own interests. If your own interests are damaged, use the method I said before to make a scene from an objective point of view. So, at present, your best choice is to apologize.