Your email can be short and sweet. Click here to find a formal opt out letter that can be used to exempt your child from sex education and surveys.Parents should place the opt-out request, in writing to their school principal, in advance of the testing date. The request is to be submitted annually. I would really appreciate the sample letters you use for entering school in Mass. I do not know if I'm going to run into a problem with the Catholic preschool. I send an opt out letter every year while my kids have been at Public school. For students who opt out, parents should communicate with your school and find out what your child will be doing during the time that is carved out for SEL. How can I opt out my child? Send the principal a letter saying you don't want your child to take the test.