S.S.
How wonderful! I have been doing this for awhile, both as a sub and parapro and my background is also unrelated. Well, my certifications. My real background is definitely related going back to raising my children who are in their twenties and 12 plus years as a sub and additional ones as a parapro. Whenever I filled out forms or wrote letters I included my background (a B.A. in Communications and a certificate in paralegal. In both cases it was always told to me that it definitely shows that you have the stick to itness to follow through. Next you clearly have experience with children, volunteering is very important! And do not derail how important a mother's work is. Include it all, just be concise and somewhat brief as no one really wants to spend fifteen hours reading about the time you were able to tame the dog next door so it wouldn't jump on your daughter's lemonade stand. Well,maybe they would. Who knows. Since you were already asked you definitely have a one-up there, so enjoy that part of it. And good luck! Sounds like you got the job. Don't worry about this initially people spend lifetimes updating and reviving resumes and teachers go through certification and recertifications all the time