Quoting or paraphrasing material without citing the source of that material. Sources can include Web sites, magazines, newspapers, textbooks, journals, TV and radio programs, movies and videos, photographs and drawings, charts and graphs; any information or ideas that are not your own.
even if you do cite it.
Buying a paper online or downloading a paper from a free site.
Copying or using work done by another student.
Citing sources you didn't use.
Turning in the same paper for more than one class without the permission of both teachers.
Put in quotations everything that comes directly from the text especially when taking notes.
Instead, read over what you want to paraphrase carefully; cover up the text with your hand, or close the text so you can’t see any of it (and so aren’t tempted to use the text as a “guide”). Write out the idea in your own words without peeking.