Compare and Contrast: Two Architectures
B2 · Writing Lab · about 35 minutes
1 · Learn
There are two ways to build a comparison. The BLOCK method gives each subject its own paragraph, the same criteria in the same order — calm, clear, best for two subjects and patient readers. The POINT-BY-POINT method takes one criterion at a time and puts both subjects inside it — sharper, more analytical, best when the judgment matters more than the portraits.
Whichever you choose, the criteria do the thinking: cost, speed, quality, feeling. Parallel criteria in a fixed order let the reader compare; random differences in random order produce soup. And comparisons need measurement language: slightly, considerably, far, twice as, whereas, while, unlike — words with weight in them.
2 · See an Example
Trains vs Planes, Point by Point (excerpt)
On price, the two pretend to compete and rarely do: the plane wins the ticket and loses the journey, once airport transfers, baggage fees, and a night of lost sleep are added to the ledger. The train's price is the price — and it deposits you in the city center, not an hour beyond it.
On time, the plane's advantage is real but shrinking at the edges. A two-hour flight is a five-hour expedition door to door, while the train's three hours are three hours — seated, working, watching the country argue with the weather. Under four hours of rail, the honest stopwatch already favors the train; the sky keeps only the long distances now.
On experience, there is no contest left to judge. One vehicle treats you as cargo with a seat number; the other still believes travel is a thing that happens between places, not an absence between them.
3 · Analyze the Example
- Criterion-first sentences. “On price… On time… On experience…” — each paragraph opens by naming its criterion. The reader always knows the measuring stick.
- Both subjects in every paragraph. Point-by-point: plane and train share each paragraph, so the comparison happens in the same breath, not across a page gap.
- Costs counted honestly. The plane's “win” is corrected by its hidden ledger (transfers, fees, sleep). Fair accounting is what makes the verdict trusted.
- Escalating verdict. Criteria rise in weight — price, time, experience — and the last is declared beyond contest. Structure becomes rhetoric.
Useful Vocabulary
Price is only one criterion.
Trains arrive centrally, whereas planes land far out.
Add the hidden costs to the ledger.
Door to door, the train is faster.
The advantage is shrinking.
Useful Expressions
- On [criterion], …
- …, whereas / while …
- considerably / far / slightly + comparative
- twice as … as …
- There is no contest: …
Common Mistakes
✗ Paragraph 1: everything about trains (price, comfort, history, scenery). Paragraph 2: everything about planes (speed, snacks, a joke about airports). Conclusion: “Both are good.”
✓ Same criteria, same order, both subjects measured with the same stick — then a verdict the measurements earned.
Mismatched criteria make comparison impossible: the reader is handed two portraits and asked to do the essay's work.
✗ “The train is good. The plane is also good. The train is nice. The plane is nice too.”
✓ “The train is slower but cheaper; the plane is faster but, door to door, by less than you think.”
Comparisons need comparative forms and quantities. Adjective confetti (good/nice/good) measures nothing.
✗ Comparing a $40 train ticket with a $39 flight and declaring the flight cheaper — while ignoring $60 of airport transfers and fees.
✓ Count the full ledger on both sides, or state clearly that you are comparing ticket prices only.
Dishonest accounting is the fastest way to lose a comparison's reader.
4 · Guided Practice
Choose the architecture: you must compare three phones for a buying guide. Block or point-by-point? Why?
See a model answer
Point-by-point (price / camera / battery across all three in each section) — readers of a guide compare criteria, not portraits. Block suits TWO subjects.
Measure it: “The bus is cheaper than the taxi.” Add two degrees of measurement.
See a model answer
Example: “The bus is considerably cheaper in price but slightly slower at midday; the taxi costs roughly four times as much.”
Fix the soup: “Cats sleep a lot. Dogs need walks. Cats are quiet. Dogs bark. Cats are small.”
See a model answer
Group by criteria: Company: “…”; Noise: “…”; Exercise: “…” — each criterion gets both animals.
5 · Write — Your Task
✍️ Write a comparison of two real rivals (train vs plane, city vs suburb, paper books vs e-books, two phones, two ways of learning): choose your architecture deliberately, fix three criteria, keep them parallel, measure with comparatives and honest accounting, and deliver a verdict your measurements earned.
Goal: 3–4 paragraphs · Length: 280–330 words
- Write the criteria at the top of your draft and do not let a paragraph leave them.
- Count hidden costs on both sides.
- Order criteria from least to most decisive — structure is rhetoric.
6 · Check — Self-Check
Work through your checklist honestly, then run the Self-Check. It counts words and sentences and spots mechanical points — it does not grade your English. You are the editor.
Read a model answer for the task
Block method, on two libraries. The old central library smells of paper and raincoats. Its strengths are depth and serendipity: six floors of stacks where the book you need introduces you to the book you actually needed, and reading rooms where silence is a public utility. Its weaknesses are equally physical: it closes at eight, its catalog computer is a museum piece, and half its treasure sleeps in storage across town.
The new media library, by contrast, is all glass and now. It never really closes — the digital shelves stay open all night — and its seats, screens, and coffee understand how students actually work. But its collection is wide and shallow, rented from platforms that can withdraw a title overnight; what it gains in convenience it pays for in impermanence. Choose the old library to disappear into a subject; choose the new one to get a task done. A serious town refuses to choose, and funds both.
7 · Improve & Rewrite
Weak version — rewrite it in your notebook first, then compare:
Online shopping is good because it is easy. Stores are good because you can see things. Online shopping has many things. Stores are in the city. Both are good for shopping in different ways.
See an improved version
On range, online shopping wins without a fight: no high street can stock what a warehouse network can. On certainty, the physical store answers with the oldest technology in retail — your hands. A jacket's weight, a shoe's mercy on your heel, a melon knocked for ripeness: these data have no digital form yet. On cost, the ledger surprises both camps — delivery fees and returns tax the online basket, while parking and time tax the store visit. The contest, honestly scored, ends where it should: objects you can judge from a photo have already moved online; objects you judge by touch are keeping the stores alive.
Quick Quiz
Keep going
📘 Grammar deep-dive: Comparatives & Superlatives🌱 Vocabulary Builder: the A2 Travel Transport set🎤 Speaking Studio: say this lesson out loud← Previous lesson · B2 — all lessons · Next: Formal Emails and Professional Communication →
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