1. An argumentative essay uses evidence and facts to prove whether or not a thesis is true. It presents two side of a single issue and covers the most important arguments for and against. 2. An argument states a claim and supports it with reasons and evidence from sources. Arguing your side makes you the proponent. 3. The counterargument is your opponent's (the other side's) argument that tries to explain why you are wrong. 4. Introduction can be personal anecdote, example (real or hypothetical), question, quotation, statistics or striking image. 5. Below is a flowchart which you may use as guide in writing argumentative essay.