It is critical your resume is focused on your target position. Don't try to focus on two different positions in one resume. This will undervalue your expertise and project the impression that you really don't know what you want to do. Instead of risking lost opportunities consider having a different resume for your second job target. For example, your first job focus may be High School Art Teacher and the second focus is Kindergarten Teacher. To effectively market your skills you should have two resumes.