If I send my teacher an ananymous email, can she trace it back to me?
Yeah, just make a new email with anonymous information. Unless she is a teacher in a computer class I doubt she has the knowledge to track it back to you. Even if she could, I doubt she would say anything to you. Anyways, if you really don’t want you to be traced, just go somewhere like a library or somewhere with public computers, even the schools computers if they don’t have email blocked and send it to her. If you don’t want any trace at all to where she couldn’t ever track it back to you, go to a friends house and email it to her from there. This is the best way for anonymity.