How to ask the professor for an invitation letter?

mehedimx891@gma

Professor [Name]/ Dear Dr. [Name],

(I hope this email finds you well.)

[Common polite words at the beginning of the email can also be omitted]

My name is […]. I took your [Course name] course last semester.

[Briefly introduce your relationship with the professor]

You may remember me [egcoming to your office hours buying phone number lists after every test to go over some of my wrong answers/ discuss essay prompts / etc.]

[If you have some contact with the professor after class, you can write it in]

You may not remember me [eg because I tend to put my nose to the grindstone and study on my own.]

[If I have never had contact with the professor after class, I can briefly excuse myself]

[Course name] was a very challenging subject for me and I was proud of the [Grade, eg A-] I received in your class.

【Write your grades for this subject (generally, you will choose a teacher with a better grade to write a recommendation letter)】