Use these prompts to practice the first sentence of a paragraph, not to pick an essay subject. Each item names a topic-sentence problem—claim versus fact, over-wide scope, a fake however—that you can replay in any module. Write the sentence, then check whether the rest of the paragraph would have to follow.

48 topics organized by theme, with difficulty levels and suggested sources.

Claim versus fact versus announcement

Making the first sentence arguable, not a label or a truism.

Replace this paragraph will discuss with a claim

Argue that an announcement names a topic while a topic sentence takes a position the unit must prove.

Beginner · How-to — Sources: your draft, a thesis-versus-topic handout

Turn a naked fact into a claim about that fact

Show that Unemployment was 7% is evidence, whereas The official rate understates slack is a topic sentence.

Beginner · Analytical — Sources: a statistics table, your paragraph

Avoid a moral slogan that the paragraph cannot prove

Claim that Inequality is wrong is too large; a sentence about one mechanism is the right width.

Intermediate · Argumentative — Sources: your draft, the assignment question

Write a topic sentence that is not the author’s name plus a verb

Argue that Smith argues X makes Smith the topic; your claim about Smith’s gap should lead.

Intermediate · How-to — Sources: a literature-review paragraph, the cited chapter

Distinguish a thesis from a paragraph topic sentence

Show that the first sentence of a body unit should be narrower than the essay’s thesis.

Beginner · Compare-Contrast — Sources: your thesis, three body topic sentences

Revise a definition-as-topic-sentence so it still stakes a use

Claim that Resilience, in this report, means return-to-work within 12 weeks is usable; Resilience is important is not.

Intermediate · How-to — Sources: a key term, a professional report template

Open a results paragraph with the pattern, not with Table 2 shows

Argue that the table is a pointer, not the claim.

Beginner · How-to — Sources: the table, a sample results section

Write a topic sentence that could be false

Claim that if nobody could disagree, you have a background sentence, not a topic sentence.

Advanced · Analytical — Sources: your sentence, a counterexample you can imagine

Forecasting the paragraph’s evidence

Previewing the kind of proof without listing every example.

Name the type of evidence the paragraph will use

Argue that a sentence previewing interview talk, a statute, or a figure helps the reader calibrate.

Beginner · How-to — Sources: your evidence, the paragraph

Avoid a shopping-list topic sentence of three examples

Claim the first sentence should state the point the examples share, not the example names.

Intermediate · How-to — Sources: three cases, a unity checklist

Forecast a comparison without doing the comparison yet

Show that Unlike the 1994 reform, the 2012 Act… can be a topic sentence if the paragraph then proves one contrast.

Intermediate · Compare-Contrast — Sources: two policy texts, your outline

Preview a method limit in the topic sentence of a limitations unit

Argue that The sample cannot speak to X is a better opener than Several limitations should be noted.

Intermediate · How-to — Sources: your methods, a limitations model

Write a close-reading topic sentence that names a device, not the plot

Claim that The last stanza undercuts the promise of comfort is more useful than This poem is about grief.

Beginner · Analytical — Sources: the poem or scene, a close-reading guide

Forecast a calculation the paragraph will walk through

Show that The elasticity is sensitive to the 2019 outlier is a claim; We now calculate is an announcement.

Advanced · How-to — Sources: your notebook, the paragraph

Open a legal application paragraph with the test, not the facts

Argue that Under the reasonableness limb… tells the reader the job of the unit.

Advanced · Case-Study — Sources: the judgment, a problem-question model

Signal that the paragraph will interpret a visual

Claim the topic sentence should state what the map or still shows for your argument, not that a figure exists.

Beginner · How-to — Sources: the figure caption, your draft

Transitions from the previous point

Old-to-new openings that still contain a claim.

Start with old information, end the sentence with the new claim

Argue that Given that lag, the next risk is liquidity is easier to follow than Liquidity is also important.

Intermediate · How-to — Sources: the previous paragraph, a style note on information flow

Use a however that names what is being limited

Claim that However, the same survey cannot speak to rural clinics specifies the exception.

Beginner · How-to — Sources: your two paragraphs, a transitions handout

Avoid a transition word that contradicts the logical relation

Show that furthermore plus a contradiction is a broken topic sentence.

Beginner · Analytical — Sources: your draft, a reverse outline

Write a bridge sentence after a theory paragraph into a case

Argue that Applied to the 2020 procurement scandal, the principal–agent test predicts… is a topic sentence with a job.

Intermediate · Expository — Sources: theory notes, the case file

Open with a concession so the main clause can still be your claim

Claim that Although costs fell, wait times rose is a complete topic sentence; Although costs fell. is not.

Beginner · How-to — Sources: two indicators, your paragraph

Echo a key word from the previous last sentence, then turn it

Show that lexical cohesion can replace a clunky in addition.

Advanced · How-to — Sources: the two sentences, a cohesion exercise

Write a topic sentence that marks a section turn (from causes to effects)

Argue that the first sentence of a new heading should restate the new job, not continue the old list.

Intermediate · How-to — Sources: your headings, the first sentence under one

Refuse a this that has no noun

Claim that This shows the policy failed is a weak opener until This delay shows…

Beginner · How-to — Sources: your draft, a pronoun-clarity checklist

Scope: too broad, too narrow, or off-task

Fitting the first sentence to the evidence you actually have.

Narrow a civilization-wide topic sentence to one mechanism

Argue that Technology changed society cannot be proven in 180 words; one adoption pathway can.

Beginner · How-to — Sources: your sentence, the paragraph’s evidence

Widen a sentence that only names one anecdote

Claim the topic sentence should state the pattern, with the anecdote as illustration.

Intermediate · How-to — Sources: the anecdote, a second example if you have one

Align the topic sentence with the assignment verb (evaluate, compare, trace)

Show that a describe sentence under an evaluate prompt is off-task from the first line.

Beginner · Analytical — Sources: the brief, your sentence

Check that the sentence does not promise a history the paragraph will not deliver

Argue that From antiquity to now is almost always too wide for a body unit.

Intermediate · How-to — Sources: your sentence, the rest of the paragraph

Fit a topic sentence to a short paragraph in a briefing paper

Claim that professional memos still need a point-first opener, even in four sentences.

Intermediate · Case-Study — Sources: a briefing template, your memo

Revise a sentence that is really two topic sentences joined by and

Show that and often hides a second unit you should split.

Intermediate · How-to — Sources: your sentence, a unity test

Write a topic sentence for a paragraph of negative evidence

Argue that What is missing from the archive is itself a claim, not a failure to find sources.

Advanced · Analytical — Sources: a finding aid, your research log

Match hedging in the topic sentence to the strength of the evidence

Claim that may is honest for a small sample; proves is not.

Advanced · Argumentative — Sources: your data, a hedging handout

Methods, limitations, and caveats as openers

First sentences for process, doubt, and scope notes.

Open a methods paragraph with the aim of the procedure

Argue that To reduce recall bias, the survey used diaries… beats The survey was conducted.

Beginner · How-to — Sources: your protocol, a methods model

Write a topic sentence that owns a sampling limit

Claim that Because recruitment ran through one clinic, the sample over-represents… is a point, not a confession.

Intermediate · How-to — Sources: recruitment log, limitations draft

Flag an assumption before you use a model

Show that The forecast treats prices as exogenous is the right first sentence if the paragraph defends that choice.

Advanced · Analytical — Sources: model notes, an appendix

Open an ethics paragraph with the live tension, not We obtained approval

Argue that approval is background; the topic is the dilemma you had to manage.

Intermediate · Argumentative — Sources: ethics application, placement notes

Write a caveats sentence that still advances the section

Claim that These figures are 2019 prices, so they understate… does work; It should be noted that data have limits does not.

Beginner · How-to — Sources: the table note, your paragraph

Introduce a robustness check as a topic sentence

Show that Dropping the 2020 year does not reverse the sign is a finding, not a methods leftover.

Advanced · How-to — Sources: your output, a results section

Open a coding-reliability paragraph with the disagreement rate

Argue that a number in the first sentence is better than Codes were discussed.

Intermediate · Case-Study — Sources: coding memo, methods chapter

Write a topic sentence for a failed method you still report

Claim that The sensor series was unusable after week three is honest and saves the reader time.

Advanced · How-to — Sources: lab or field log, a reporting guideline

Counterclaims, ‘however’ openers, and section jobs

First sentences that argue, concede, or reorient.

Open a counterargument paragraph with a fair opposing claim

Argue that Critics who focus on cost are right that… is stronger than Some people disagree.

Intermediate · Argumentative — Sources: an opposing brief, your draft

Write a reply topic sentence that names the limit of the concession

Claim that That cost point does not decide equity is a new claim, not a restatement.

Intermediate · How-to — Sources: your concession paragraph, the reply

Use still, yet, or even so only if the previous sentence created a tension

Show that a contrast opener with no prior contrast reads as a tic.

Beginner · Analytical — Sources: the two sentences, a reverse outline

Write a section-opening topic sentence that restates the heading as a claim

Argue that a heading called Causes should not be followed by There are many causes.

Beginner · How-to — Sources: your heading, the first sentence

Open a recommendations unit with the action, not with In light of the above

Claim that The board should freeze hiring in Q4 is a topic sentence a busy reader can use.

Intermediate · Case-Study — Sources: a report template, your recommendation

Write a reflective topic sentence that names a concept, not a feeling only

Show that The placement exposed a gap between protocol and staffing is more usable than I felt challenged.

Intermediate · How-to — Sources: placement notes, a reflective-writing guide

Open a conclusion paragraph with a synthesized claim, not In conclusion

Argue that the last unit’s first sentence should be able to travel without the label.

Beginner · How-to — Sources: your conclusion, an endings handout

Draft a topic sentence that sets up a definition fight

Claim that What the Act calls a worker excludes… is a contestable opener for a conceptual paragraph.

Advanced · Analytical — Sources: the statute, a commentary

Pro Tips for Choosing Your Topic

If nobody could disagree with the first sentence, it is background, not a topic sentence.
Preview the kind of evidence, not a shopping list of examples.
Old-to-new: start with a link to the previous point, end the sentence with the new claim.
Split a sentence joined by and if it is really two paragraph jobs.
Match hedges (may, cannot speak to) to the evidence you will actually offer.

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50 Topic Sentence Ideas for Academic Writing