Introduction:
Now sit down and write the essay. The introduction should grab the reader's attention, set up the issue, and lead in to your thesis. Your intro is merely a buildup of the issue, a stage of bringing your reader into the essay's argument.

(Note: The title and first paragraph are probably the most important elements in your essay. This is an essay-writing point that doesn't always sink in within the context of the classroom. In the first paragraph you either hook the reader's interest or lose it. Of course your teacher, who's getting paid to teach you how to write an essay, will read the essay you've written regardless, but in the real world, readers make up their minds about whether or not to read your essay by glancing at the title alone.)

           Paragraphs:
 Each individual paragraph should be focused on a single idea that supports your thesis. Begin paragraphs with topic sentences, support assertions with evidence, and expound your ideas in the clearest, most sensible way you can. Speak to your reader as if he or she were sitting in front of you. In other words, instead of writing the essay, try talking the essay.
           Conclusion: 
Gracefully exit your essay by making a quick wrap-up sentence, and then end on some memorable thought, perhaps a quotation, or an interesting twist of logic, or some call to action. Is there something you want the reader to walk away and do? Let him or her know exactly what.


           Language:
You're not done writing your essay until you've polished your language by correcting the grammar, making sentences flow, incoporating rhythm, emphasis, adjusting the formality, giving it a level-headed tone, and making other intuitive edits. Proofread until it reads just how you want it to sound. Writing an essay can be tedious, but you don't want to bungle the hours of conceptual work you've put into writing your essay by leaving a few slippy misppallings and pourly wordedd phrazies..
You're done. Great job. Tanx Mizz Zu,, hahah

(Of course Hemingway was a fiction writer, not an essay writer, but he probably knew how to write an essay just as well.)