The Class Teacher,
__________ (Department- Class he/she teaches to),
__________ (Name of the School),
__________ (School Address)
Date: __/__/____ (DD/MM/YYYY)
Subject: Apology for being disrespectful
With all due respect, I am __________ (Name of the Student), studying in class / department __________ (Name of the Class / Department), holding roll number __________ (Roll Number Issued).
I am writing this letter concerning the recent incident that happened in class. I sincerely apologize for being disrespectful during the lecture on__________ (Date). I am nothing but a child who will eventually grow out of this silly behavior and learn to be a more mindful, respectful, and civilized human being. I am extremely sorry and I assure you that it will not be repeated ever again.
Please accept my deepest apology for any distress caused to you on my part.
__________ (Name of the Student),
__________ (Roll Number)