Kindly download the document linked here, print it, sign it and give it to the headmaster/headmistress of your school.
The letter starts as follows :-
‘We would like to point out our grave concern regarding what is presently being taught in states schools without our previous consultation or consent.
Our children are already being taught acceptance, love and human dignity and to encompasses all both at home and through other acceptable means.
The LGBTIQ Action plan 2015-2017, however, seeks to impose a cross sectional gender indoctrination of all segments of the population including school children.’