<p>I agree with Northstarmom. As a former HS teacher and working with college students now on references and citations in a college library, I see it time and time again where a student does not read the class syllabus or listen to the teacher in class when he/she goes over his/her plagarism/citation policy then same student cries “unfair” when they violate the policy, unintentionally or otherwise. It does not matter what other teachers’ policies are. You are only governed by the policies in YOUR class.</p>
<p>That said, I think the OP’s best course of action is to show remorse, not indignation, at the hearing. Humility may get you more than righteousness. Explain that it was unintentional and a very small percentage of your paper. Do not mention any other teacher’s class policies. That doesn’t really matter. If you are a consistently good student, I think that the principal will take that into account. You may have to take this as a life lesson and really learn from it. Better this to happen in HS than in college. Good luck to you!</p>