[Your letterhead, if desired; if not, your return address]

[Date of letter—month, day, and year]

[Recipient's first and last names]
[Company name]
[Street or P.O. box address]
[City, State ZIP code]

Dear [recipient's name]:

I am writing to apologize to you, my teacher, as well as to the school staff, for cheating on the recent history class test. Obviously, this was a major lapse in judgment on my part, and I am profoundly regretful for having done this. I know I should have studied and learned the test material more, and I know that cheating is always wrong and is a violation of the school's honor code.

Please let me know when I can take the history test again and whether there is anything else I need to do to make amends for my mistake. Thank you in advance for your time and for considering my apology.

Sincerely,

[Signature]

[Sender's first and last names]