It's important to make sure you collect all the information you need to cite a source as you gather your information so that you won’t need to look it up again, so:
Take clear, accurate notes about where you found specific ideas
Write down the complete citation information for each book, article, etc. you use as you go along
Use quotation marks when directly stating another person's words
Always credit original authors for their information and ideas
Definition: To plagiarize means to try to pass off another person’s words, work, information or ideas as our own, without giving them credit.
Sometimes plagiarism is committed on purpose. For instance, a student turning in an entire paper that he or she didn’t write, or cutting and pasting huge pieces of information from an online source into a paper without acknowledging the original source of information.
Unintentional plagiarism can occur when students aren’t aware of everything that must be cited. For instance, while most students know they must give credit for using someone's exact words, some are unaware they must also give credit for using someone’s ideas...even if they have put those ideas into their own words. Unintentinal plagiarism can also occur when students don’t keep track of their source material, so that by the time they return to their notes they cannot distinguish between what information they came to on their own, and what information came from an outside source.