Final answer:
Submitting the same paper from high school for a college class is an act of self-plagiarism. This is both unethical and against academic policies, similar to copying text from the Internet without proper citation, which is direct plagiarism.
Step-by-step explanation:
When you submitted the same paper from high school for a college class, the form of plagiarism you're committing is known as self-plagiarism. This occurs when a student submits their own previously published work without proper citation or authorization. It is a misconception that one cannot plagiarize themselves, but in academic contexts, reusing your own work without permission is considered unethical and against academic policies.
Analogous to this, if a student copies a passage word-for-word from an Internet site and pastes it into a paper but forgets to include quotation marks or author attribution, they have committed another type of plagiarism which could be described as direct plagiarism. Both self-plagiarism and direct plagiarism are acts that compromise academic integrity and are avoidable by practicing careful research and writing.