How to politely ask a teacher to write a recommendation letter?

Politely ask the teacher to write a letter of recommendation as follows:

(1) "I'm going to apply for university in advance. I wonder if you can write a letter of recommendation for me? " Ask the teacher in this way, so that the teacher has a choice. He may say that other teachers can help you write a more weighty recommendation letter. The teacher has the right to refuse your request. If you are rejected, or the teacher is hesitant, thank him and then continue to ask other teachers for help. What you need is not a letter of recommendation that is illegible or cold.

(2) Most teachers know your interest and hope you have the most effective references. Once the teacher promises to write you a recommendation letter, see what you need to provide. The teacher may ask you to provide three or four articles that you are most proud of or an unofficial report form, and may also give you a questionnaire for you to fill out.

(3) Universities want teachers to write about your performance in class. So generally speaking, you don't need to provide a list of activities or a brief introduction to the teacher unless the teacher asks you to provide it. Extracurricular activities will be reflected in other parts of the application form, and the recommendation letter of the admission consultant will contain this information, which will be discussed in this chapter. Teachers know what they need, and you give them whatever they want, so don't take it for granted to give them some materials that you think they need.

(4) If the teacher who helped you write the recommendation letter has no preference for the information you provide, you are welcome to provide more information. You can write a short message (less than one page or only one paragraph) explaining why you asked them to write a letter of recommendation. The content of the letter should include your growth and experience in class. For example, "I asked you to write a letter of recommendation for me because I was deeply attracted by mathematics the first time I took your math class."