* In the heading or salutation: "Elementary Special Education Resource Teacher, [School Name]" or "Dear [Hiring Manager Name], I am writing to express my interest in the Elementary Special Education Resource Teacher position..."
* When referring to the specific job title: "...my experience as an Elementary Special Education Resource Teacher aligns perfectly with the requirements outlined in the job description."
You would *not* capitalize it if used descriptively in a sentence: "My work as an elementary special education resource teacher has focused on..."
In short, follow standard capitalization rules for titles and job descriptions.