This document provides information and instructions about writing an argumentative essay. It explains that an argumentative essay requires agreeing or disagreeing with an issue using reasons to support an opinion. There are two common patterns for organizing an argumentative essay: the block pattern, which rebuts the opposing arguments first before presenting your own; and the point-by-point pattern, which alternates between presenting an opposing argument and rebutting it with your counterargument. The introduction should explain the issue, include a thesis statement stating your position, and may reference opposing viewpoints.