Most schools require a note from a parent explaining the reason for a student's absence. The note should be sent with the child when he returns to school to ensure that the absence is excused.
Write the date at the top of the paper.
Start the note with a greeting. Address the note to your child's teacher if he has only one, or to a particular school official if the note must be delivered to the administrative office. For example, you might write "Dear Ms. Canary," to address your child's teacher or "Dear School Secretary," to address the note to a school official.
Identify your child at the beginning of the note. Give the date of the absence and the reason. For example, write, "Please excuse my son, David Smith, for his absence on February 2, 3 and 4, 2011. He was sick with strep throat."
End the note with a closing and sign your name.
Attach a note from a physician if required by the school.
Many schools require parents to contact them at the beginning of a student's absence. This helps schools monitor truancy and keep students safe.