The document discusses plagiarism, which is using someone else's work without proper attribution. It provides examples of plagiarized student work and notes that plagiarism can be intentional or unintentional. Additionally, the document explains that plagiarism is illegal under copyright law, dishonest, and prevents students from expressing their own ideas. To avoid plagiarism, the document advises using original wording when possible and properly citing sources using quotation marks, footnotes, or endnotes.