In some essays, the introduction should also include background information.
Myrtle wants to convince her parents to give her a later curfew, and she's going to write an argumentative essay to do that. What information does she need to include in her essay?
There are some specific elements that are needed in an argumentative essay.
Imagine that she has an article about how kids with later curfews spend more time at the library, but it was written by someone who, like Myrtle, is trying to convince his parents to let him stay out later.
In this case, the article might not be completely accurate and true.