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ESL Exam Writing: A Task-by-Task Preparation Guide

Every exam writing task has conventions. Knowing them is as important as knowing the grammar.

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Matthew James Soldato

ESL Teacher & Founder of DrillKitOct 14, 2025

Why Task Familiarity Is Half the Battle

Exam writing tasks are genre-specific: they have fixed conventions that examiners expect and reward. A student who writes an excellent general essay for an IELTS Task 2 question may score half a band lower than a student who writes a competent essay using the expected format.
This isn't about teaching to the test — it's about teaching professional genre competence. Knowing how a task is structured, what's rewarded, and what examiner error bands look for is the difference between demonstrating your ability and leaving marks on the table.

Task by Task: What Examiners Want

IELTS Academic Task 1 (Graph/Chart Description)
Must include: overview of the main trend(s), comparison of key data points, specific figures with appropriate approximation language. Must NOT: state an opinion, explain why the data looks as it does. Common error: writing a Task 2 argument about the graph topic rather than describing the data.
IELTS Task 2 (Essay)
Four paragraph structure: intro (paraphrase + thesis) → body 1 (first main point + development + example) → body 2 (second main point or counterargument) → conclusion (restate + implication). Assessment: Task Response (answering the question), Coherence & Cohesion, Lexical Resource, Grammatical Range & Accuracy.
TOEFL Independent Writing (30 minutes, 300-400 words)
Personal opinion essay. Must give a personal position and defend it with specific reasons and examples. Examiners assess development of ideas and organization of writing.
TOEFL Integrated Writing (20 minutes)
Read a passage + listen to a lecture that challenges the reading. Summarize what the lecture says and how it relates to the reading. Do NOT give an opinion. Do NOT only summarize the reading.
Cambridge FCE Writing Task 1 (Compulsory)
Usually an essay on one of the reading topics. Required: clear argument, cohesive structure, appropriate register. Clear CEFR B2 vocabulary and grammar required.
Cambridge CAE Writing Task 2 (Choice)
Report, proposal, letter, or review — different genre conventions for each. The choice of register and format precision is explicitly assessed.

What Examiners Actually Assess

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Task Achievement

Did you answer the actual question asked? The most commonly failed criterion

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Coherence & Cohesion

Does the text hold together logically and use discourse devices appropriately?

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Lexical Resource

Vocabulary range, precision, and appropriate use — not raw frequency of complex words

Teacher Tip

Analyse band descriptor samples with students. IELTS publishes band 5, 6, 7, and 8 samples for public writing tasks. Read them together and identify: what makes the 8 different from the 6? Usually: the 8 answers the question more directly, has more precise vocabulary, and has fewer grammatical errors. The criteria become visible in the samples.

Frequently Asked Questions

How long should IELTS Task 1 take?

20 minutes maximum. Many students spend 30+ minutes on Task 1 and have insufficient time for Task 2 (which is worth double). Task 2 should get at least 40 minutes — time allocation is a fundamental exam strategy.

Is it better to use simple grammar correctly or complex grammar with errors?

Examiners assess 'Grammatical Range and Accuracy' — both range AND accuracy. A text with complex structures used incorrectly scores poorly. A text with simpler structures used perfectly scores adequately. Therefore: use complex structures you're confident in, simpler ones where uncertain. Don't use structures you haven't practised.

How many words should I aim for in IELTS Task 2?

250 minimum (stated requirement). 260-290 is typically optimal — enough to develop arguments without rambling. Over 320 words rarely improves the score and risks introducing more errors. Quality of development beats quantity of words at every band.

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