Most essays do not fail because the student knows nothing. They lose marks because of habits that are surprisingly easy to fix once you can name them: a thesis that hints instead of arguing, evidence dropped in without explanation, a tone that reads more like a message to a friend than an academic argument. Markers see the same handful of errors week after week. Learn to spot them in your own drafts, and a middling essay can become a strong one without a single extra source.

The Thesis That Doesn't Actually Argue

A weak thesis usually sounds broad and safe. It feels like a summary of the topic rather than a claim about it.

Social media has a big impact on young people.

Nobody can disagree with that sentence, which is exactly the problem. An essay needs a position a reasonable person could challenge. Compare it with this:

School phone bans reduce classroom distraction, but they do little to change how teenagers behave online once the bell rings.

The second version takes a stance, sets limits on the argument, and gives the rest of the essay somewhere to go. When you draft your thesis, test it by asking whether someone could argue the opposite. If they couldn't, sharpen it. Adding a because clause often does the job, since the reasoning behind your claim is usually the part that was missing.

Evidence Used as Decoration

Quotations and citations do not earn marks simply by appearing. They earn marks when you explain what they show. The classic weak pattern looks like this: a quotation, a full stop, and straight on to the next point. The marker writes "analysis?" in the margin and moves on.

The three-move paragraph

Introduce the evidence so the reader knows what to expect. Present it briefly, quoting only the words that matter. Then spend two or three sentences working with it: what does the source actually claim, how does it support your argument, and where might it fall short? That last question matters more than most students think, because acknowledging a limitation shows judgement rather than weakness.

Two related traps are worth avoiding. The first is padding with a long quotation when four words would do; markers can usually tell when a quote has been used to fill space. The second is citing a source you have only met through someone else's summary. If you haven't read it, either read it or leave it out.

When the Tone Slips into Chat

Academic writing is not stiff or pompous, but it is more formal than everyday speech. Small slips add up and quietly cost you marks, particularly in subjects where written style is assessed.

• Contractions: write do not and cannot rather than don't and can't.
• Vague quantity: replace a lot of with many, numerous or a significant proportion of.
• Empty nouns: things, stuff and aspects usually hide a more precise word. Name it.
• Second person: you has no place in most essays. Use readers, students or the group you actually mean.
• Exclamation marks and rhetorical questions: both belong in a blog post, not a critical analysis.
• etc.: if the list matters, finish it; if it does not, cut it.

One caution: don't swing the other way and dress up plain words. Utilise is not more academic than use, and in order to is not more precise than to. Check your module handbook, too, because some disciplines are far more relaxed about the first person than others.

Paragraphs That Wander

Every paragraph should make one point, and that point should be visible in its opening sentence. Long, unbroken blocks of text hide the logic of your argument; a string of three-sentence paragraphs fragments it.

The quickest fix is a reverse outline. After drafting, write a one-line summary of each paragraph in the margin. Then look at the list. If a paragraph covers two ideas, split it. If two paragraphs say the same thing, merge them. If the summaries do not follow a logical order, reorder the paragraphs before you touch another sentence. This takes fifteen minutes and rarely fails to improve a draft.

Introductions are a common casualty. Skip the sweeping claims about how long people have been debating your topic and get to the question, your position, and the route you will take. Conclusions should not simply repeat the introduction in different words; they should say what follows from your argument.

Referencing, Spelling and Other Marks You Give Away

Mixed spellings look careless in a UK essay. Pick British conventions and apply them consistently: organise, analyse, colour, centre. One American spelling is not a disaster, but three in a paragraph suggest nobody proofread.

Referencing errors are more serious. Direct quotations need page numbers. Your reference list must match your in-text citations exactly, in the style your department specifies. Lecture slides are not usually an acceptable substitute for the reading they summarise. Because conventions vary between institutions, treat your module handbook or library's style guide as the authority rather than a general online template. Write your citations as you go, too; reconstructing them the night before submission is how accidental plagiarism happens.

Punctuation is worth a quick sweep: comma splices joining two complete sentences, apostrophes in its versus it's, plural possessives such as students' work, and decades written as 1990s without an apostrophe.

Skipping the Edit

Almost every error in this article is invisible while you are writing and obvious when you read your work aloud. Book twenty minutes for that after you finish. Read the essay as though you were a marker seeing it for the first time, with the question beside you, checking that every section answers the question that was actually set rather than the one you would have preferred. If you can leave a draft overnight before editing, do it; distance sharpens judgement.

Check the balance of your argument as well. One point that runs to three pages while four others share a paragraph is a structural problem, not a word-count one. Cut the weakest evidence rather than the analysis, and trim any sentence that repeats something already established.

A Short Checklist Before You Submit

1. Could a reasonable person disagree with my thesis?
2. Does every paragraph open with a clear point, and stick to it?
3. Is every quotation introduced, brief and explained?
4. Have I removed contractions, you, a lot of and stray exclamation marks?
5. Are spellings consistently British, and do my citations match my reference list?
6. Have I read the whole thing aloud and answered the question that was set?

None of these fixes requires more research or a better idea. They require one careful pass with a critical eye, which is the difference between an essay that shows what you know and one that makes the marker believe it.

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