I was recently accused of plagiarism. I didn't plagiarize. What should I do? The teacher that accused me is very hard to deal with, and there is...

Plagiarism is a serious accusation, and one that shouldn’t be taken lightly.  I would suggest you upload your writing to a free plagiarism checker like the one at grammerly.com.  You can print out your results and take them to your teacher.  Approach your teacher in a calm, mature way, and ask her to show you where she thinks you have plagiarized.  Sometimes when summarizing someone else’s words, we think that just changing a few words in another’s writing is okay.  If the excerpt you write has the same structure as the original, it could be plagiarism.  You have to make sure you not only change words but that you change the original style and structure.  Make sure you paraphrase and put everything in your own words except direct quotations.  Plagiarism could also include not citing your sources correctly. 

So, it’s important that you find out exactly where the problems are.  Take a copy of your proof, talk to your teacher respectfully and calmly, and if you still feel you are being wrongly accused, see your principal or guidance counselor. 

Good luck!  I hope this works out for you.