Question

Application to the principal of school for one week leave with approprite reason in standard way

Answer 1

To, 
The Principal, 
(School Name)
(Address)
(Date)

Sir,

With due respect I beg to state that I am not in a position to attend the school as I am down with Chicken-Pox. Since it is a communicable disease, I have been advised quarantine and a few days complete rest. Therefore kindly grant me leave for ten days from ____________ (Date).

Thanking you,

Yours obediently, 
(Your Name)
(Class and Section)
Roll NO.____________

Answer 2

To,
The Principal,
______________(name of school/institute in place of dashes),
___________(name of place where the school or institute is), ___________(name of District),
_____________(main city, like- New Delhi etc "don't use this line if not applicable).

Subject: Application for leave.

Respected Sir, (use Ma'am if the Principal is female)

              I beg to say that that I have an urgent piece of work at home(or you can mention the place of work, like- at my uncle's home, at my aunt's home etc). So, I am unable to attend the school/class(in case of institute) today(mention the date also)/ from (Date:dd/mm/yyyy) to (Date:dd/mm/yyyy).

Kindly grant me leave for ________(mention days you're going to be on leave, like- one day, two days 10 days etc).

Thanking you, 
Yours faithfully,
_____________(your full name),
______________(class with section which are in).

Dated: dd/mm/yyyy (date of submission of the application)