Have you contacted them to ask for a person spec? In every application I've asked if one was not provided and they've emailed something across to help me. If not look at the ofsted and school ethos and make links with examples to that in your application. Ensure you also give good examples of all the main teaching aspects they would look for such as afl, differentiation, bfl, numeracy and literacy etc etc. I have been shortlisted for every job bar one, so it must work! If you get to interview stage-I had an interview at my last placement school and fell down on one major aspect. This was that they said I knew the schools policies and ethos well and they felt like I was telling them what they wanted to hear in interview. They said I should have given solid examples of my experience to back up what I was saying. Also don't assume they will know your strengths, even if they do they can still only go on your interview so sell yourself in the same way that you would at any other interview.