How To Write An Introduction For An Argumentative Paper . Provide the grounds (evidence) for the claim. The introduction is the part that should interest the reader for the further exploring. Writing an Argumentative Essay Tips and Tricks from www.essaywanted.com The thesis statement is the backbone of your introduction: A properly written introduction for an argumentative paper can make a difference between a successful essay and an average one. It is also the part of your essay that makes your readers want to continue reading your work.