Why we should believe in Legends. Please use evidence from the text, history, and online research. When you make a claim in an essay, you express an idea or opinion about information in a text. But an effective essay does more than state ideas and opinions. To persuade your readers to accept your point of view, you’ll need to support your claim with evidence, including facts, details, examples, or logical reasons. Complete the attached worksheet from lesson 4 to practice using textual evidence.