Write a topic sentence that keeps its promise.
By Adam Frick · Illustrated draftDoes an earlier start prove better wellbeing?
A new rota lets staff start an hour earlier while keeping the working day the same length. Would you accept that information as proof of improved wellbeing? I would want more evidence before accepting the larger claim. The first example makes a confident promise and then supplies only the scheduling detail. Revising the opening brings the promise back within what the paragraph can support.
I treat a topic sentence as a promise that the paragraph must keep. In keeping with that approach, I usually put the point near the beginning and revise the opening after checking the support. Monash University’s paragraph guidance[1] also connects the topic sentence with the reader’s expectations, while recognising that the first sentence need not always carry the topic. My preference for an early, explicit point is a teaching recommendation rather than a ban on other paragraph structures.
A confident opening can promise too much.
Keep the claim within the support.
Constructed teaching exampleThe new rota improves staff wellbeing. Staff may begin at eight rather than nine. The contracted working day remains the same length.
The new rota changes the start time without shortening the working day. Staff may begin at eight rather than nine. The contracted working day remains the same length.
State the point, not just the subject.
Constructed teaching exampleThis paragraph discusses the new rota.
The new rota allows an earlier start without reducing contracted hours.
Let the next opening pick up the earlier point.
Constructed teaching exampleThe new rota gives staff a choice of start time.
In spite of that choice of start time, the rota must maintain cover throughout the working day.
Check the argument before improving the sound.
Read only the opening sentence of each paragraph in your draft. Across that sequence, you should be able to recognise the main direction of your argument. Then read each paragraph in full and ask whether the support fulfils the opening. In the case of a mismatch, narrow the promise, develop the support or move the unrelated material to a better place.
A useful topic sentence cannot repair missing evidence by sounding more academic. In relation to the examples above, the wellbeing claim needs different support from the scheduling claim. My paragraph essay shows a fuller comparison adapted from my teaching handout. For the connection between successive paragraphs, the forward and backward referencing essay develops the same principle beyond the individual opening.
I would sometimes delay the main point to let an example raise the question first. That arrangement can work when the reader can still recognise where the paragraph is going. My preference for an early topic sentence is a dependable teaching starting point, not the only possible shape. In the rota example, moving the claim would not solve the problem because the wellbeing evidence is still missing.