The opening suggests it is going to be "Useful ways to plagerize." Perhaps you could start by saying "Plagerizing can occur several ways, but it's easy to avoid committing this offense."
You don't define the concept, which is a better way to start yet. Can you define it in your own words?
You have a few run-on sentences and grammatical errors. Most importantly, instructions on how to cite properly will be the most help. There are few people who don't realize that copying off the test of the person next to them is wrong. More people might not understand how to cite works and legitimately use the words of others.