Read the passage you want to paraphrase until you're sure you understand what the author is saying.
Put the source away. Close books, turn over photocopies or minimize electronic sources. When the original source is in sight, you'll be tempted to look at it-and you'll end up with plagiarism in your paraphrase.
Record the idea of the passage, first writing down notes if you need to. Rework your sentences until you are satisfied that you have fully and clearly captured the author's idea.
Compare your paraphrase against the original passage. Check to see that you have used your own words and sentence structure, and also make sure that you have captured the meaning. Start the process again if you unintentionally plagiarized or if you have not captured the meaning.
Type your paraphrase into your essay once you are satisfied with it. Cite the source fully before writing more.