Logo Thao Ngo IELTS Thao Ngo IELTSIELTS Writing A → Z VIENMr. Ngo Duc Thao

Complete guide · Academic & General Training

IELTS Writing A → Z

Everything you need for Task 1 and Task 2: task types, how to recognise them, time frames, band criteria, paragraph plans, language by band, how the score is calculated, 20+ sample prompts with figures, band templates with practice, and games.

Task 1 · AcademicTask 1 · General TrainingTask 2 · both modules
Task 1 · AcademicTask 1 · GeneralTask 2
Suggested time20 minutes20 minutes40 minutes
Minimum words150 words150 words250 words
InputChart, table, process, mapA situation + 3 bullet pointsA statement / social issue
OutputAn objective reportA letterAn argumentative essay
Personal opinionNoYes (depending on purpose)Required when asked
Score weighting1 part2 parts (double Task 1)

Total time: 60 minutes for both tasks. You manage your own time — give Task 2 a full 40 minutes because it carries double weight.

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a

Task Types

Knowing which type you are writing decides your structure and language.

📈 Line graph

Data changing over several points in time. Focus: trends.

📊 Bar chart

Compares groups; may or may not include time.

🥧 Pie chart

Percentages of a whole; usually 1–3 charts.

🧮 Table

Lots of numbers — you must select the key figures.

🔀 Mixed / Multiple

Two visuals combined (line + bar, pie + table…). Link them together.

⚙️ Process

A natural cycle or a man-made production process. Use the passive.

🗺️ Map

Changes to a place over time, or two proposed sites compared.
b

How to Recognise the Task

Read the keywords to identify the type and the tone instantly.

TypeKeywords in the promptExample prompt
LineThe graph / line graph shows…, years on the x-axisThe graph shows the percentage of households with internet access in three countries from 2000 to 2020.
BarThe bar chart compares…, grouped barsThe chart compares the average weekly hours spent on four leisure activities by three age groups in 2025.
PieThe pie charts show the proportion / percentage…The pie charts show the sources of electricity in Country X in 1990 and 2020.
TableThe table gives information / shows data…The table shows public transport use and commuting times in four cities in 2024.
MixedThe chart and table…, The graph and pie chart…The line graph and pie chart give information about tourism spending and visitor types.
ProcessThe diagram shows how… is produced / the life cycle of…The diagram shows how glass bottles are recycled.
MapThe maps show changes / two possible sites…The maps show the centre of Greenfield in 2000 and today.

💡 10-second check: look at the x-axis (years → trends), the unit (%, millions, hours) and count the time points.

c

Time Frames — Task 1 Academic

Many points · few points · no time · future: each frame decides your tenses and language.

⏱️⏱️⏱️ Many time points (dynamic)

Line graphs, bars/tables over several years. Focus on trends: rise, fall, fluctuate, peak.

Tense: past simple · rose, fell, peaked at, fluctuated.

Example: Households with internet access, 2000–2020 (5 points).

Households with internet access (%)02040608010020002005201020152020%Country ACountry BCountry C

⏱️⏱️ Few time points (2–3)

Two pie charts (1990 & 2020), then & now maps, two-year tables. Focus: compare the change between points.

Tense: past simple / present perfect (maps “today”) · had doubled by, was replaced by, from … to ….

Electricity generation by source in Country X55%20%18%2%5%199030%25%15%26%4%2020CoalGasHydroSolar & windOther

🚫⏱️ No time (static)

A single-year chart, a survey table, a process. Focus: compare and rank (highest, lowest, twice as much) or the stages.

Tense: present simple (process, facts) or past simple if a year is given · the highest, twice as much as, is then washed.

Average hours per week spent on leisure activities, by age group (2025)03691215hours1483Social media643Sport236Reading5712TV16–2425–4445+

🔮 Future / Projections

The time axis goes beyond the present (2030, 2050). Projected data are often dashed.

Language: is expected / predicted / projected to rise; will reach; is likely to.

Population aged 65 and over in Country Y (millions)0246810Projected200020102020203020402050millionsMenWomen
Time frameCommon typesMain tenseLanguage groupWhat the overview says
Many pointsLine · Bar · Table over yearsPast simpleTrendsOverall trend + standout item
Few pointsPie × 2 · Map · 2-year tablePast simple / Present perfectComparison + changeThe biggest change between points
No timeSingle-year Bar/Pie · Process · Survey tablePresent simple (Past if a year is given)Comparison, ranking · Passive (process)Highest/lowest · number of stages, start – end
FutureLine/Bar with projectionsFuture formsPredictionExpected trend
d

Band Criteria

Four criteria, each worth 25%. Task 1 uses TA, Task 2 uses TR.

TA / TRTask Achievement / Response
CCCoherence & Cohesion
LRLexical Resource
GRAGrammar

The tables below are a teaching summary of the key signals by Thao Ngo IELTS — refer to the official Band Descriptors on ielts.org for exact wording.

Criterion (25%)Band 5Band 6Band 7Band 8+
TA – Task AchievementMechanical description, lists numbers; no clear overview; details may be missing or wrong.An overview is present but information selection is not fully appropriate; some irrelevant or missing detail.Clear overview; key features highlighted; well-chosen supporting figures.Fully meets requirements; key features skilfully selected and clearly, accurately presented.
CC – Coherence & CohesionSome organisation but unclear; mechanical or faulty linkers; paragraphing weak.Coherent with clear progression; linkers used but sometimes repetitive or forced.Logical development; varied cohesive devices; good referencing (this, these, which).Cohesion feels natural and unobtrusive; paragraphing is skilful.
LR – Lexical ResourceLimited, repetitive vocabulary; spelling/word-formation errors cause strain.Adequate range for the task; tries less common words with some errors.Sufficient range and flexibility; uses collocations and less common items; occasional slips.Wide, precise vocabulary; natural collocations; rare errors.
GRA – Grammatical Range & AccuracyLimited structures; complex sentences rare and often wrong; frequent errors.Mix of simple and complex sentences; errors present but rarely impede meaning.A variety of complex structures; most sentences error-free.Wide range of structures; the majority of sentences are error-free.

⚠️ Task 1 Academic: no personal opinion and no explanations beyond the data.

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Paragraph Plan & Length

A fixed structure secures at least Band 6 for CC from the start.

1
Introduction

Paraphrase the prompt: what visual – what it measures – where – when. 1 sentence.

≈ 20–30 words
2
Overview

The 2 most striking features (overall trend / highest / biggest change). No figures.

≈ 30–40 words
3
Body 1

First group of data + comparisons, with specific figures.

≈ 50–60 words
4
Body 2

Second group of data + comparisons, with specific figures.

≈ 50–60 words

Total 160–190 words. No conclusion needed — the overview does that job in Task 1.

f

Language for Tasks 1 & 2 by Band

Same idea — higher band through more precise words and more varied structures.

FunctionBand 5–5.5Band 6–6.5Band 7–7.5Band 8+
Increasego up, increaserose significantly, grew steadilywitnessed a steady rise, climbed tosurged, a threefold increase, soared
Decreasego down, decreasefell slightly, declined graduallydropped sharply, experienced a declineplummeted, dwindled, halved
Stable / peakstay the sameremained stable, reached a peaklevelled off, peaked atplateaued, hit a high of, bottomed out
Comparisonbigger than, more thanhigher than, compared totwice as high as, whereasin stark contrast, respectively, by far the largest
Proportion50 percenthalf, a quarteraccounted for, made upthe overwhelming majority, a negligible proportion
Approximationaboutaround, nearlyapproximately, just undermarginally above, roughly
GrammarSimple S + V sentencesCompound + whileRelative clauses, noun phrases (a rise of 20%)Participle clauses (rising to…), complex sentences
g

How the Two Tasks Are Scored

Understand the weighting to plan your time and effort.

① Score for each task

Each task is marked on 4 criteria (0–9). Task score = the average of the 4 criteria.

Task = (TA/TR + CC + LR + GRA) ÷ 4

② Writing score

Task 2 carries double the weight of Task 1.

Writing = (Task 1 + 2 × Task 2) ÷ 3

Reported in half bands (…5.5, 6.0, 6.5…).

Example

Task 1: TA 6 · CC 6 · LR 6 · GRA 5 → 5.75. Task 2: TR 7 · CC 6 · LR 6 · GRA 6 → 6.25.

Writing = (5.75 + 2 × 6.25) ÷ 3 = 18.25 ÷ 3 ≈ 6.08 → 6.0

IELTS does not publish the exact rounding rule for Writing. The calculator rounds to the nearest half band (.25 → up to .5; .75 → up to the next whole) — use it as an estimate only.

🧮 Writing score calculator

Task 1

Task 1 score: 6

Task 2

Task 2 score: 6

Writing (estimate)6.0

💡 Strategy: +1 band in Task 2 ≈ +0.67 in Writing; +1 band in Task 1 ≈ only +0.33.

f′

Sample Prompts

Task 1 Academic with a figure for every type · 4 GT letters · 10 Task 2 prompts.

Practice prompts and data written by Thao Ngo IELTS (countries/cities are fictional). Standard instruction: Summarise the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words.

1 · Line graph (many points)

The graph below shows the percentage of households with internet access in three countries between 2000 and 2020.

Households with internet access (%)02040608010020002005201020152020%Country ACountry BCountry C

2 · Bar chart (no time / one year)

The chart below shows the average number of hours per week that three age groups spent on four leisure activities in 2025.

Average hours per week spent on leisure activities, by age group (2025)03691215hours1483Social media643Sport236Reading5712TV16–2425–4445+

3 · Pie charts (few points)

The pie charts below show the sources used to generate electricity in Country X in 1990 and 2020.

Electricity generation by source in Country X55%20%18%2%5%199030%25%15%26%4%2020CoalGasHydroSolar & windOther

4 · Table (static)

The table below gives information about public transport use and average commuting time in four cities in 2024.

Public transport use in four cities (2024)
CityBus (%)Metro (%)Cycling (%)Average commute (min)
Northport3241934
Eastvale48121529
Southbay2155441
Westford1802722

5 · Process

The diagram below shows how glass bottles are recycled.

How glass bottles are recycled1Used bottlescollected2Taken to plant3Sorted by colour4Washed5Crushed intocullet6Melted at1,500°C7Moulded intobottles8Sent to shops

6 · Map (few points)

The maps below show the centre of Greenfield town in 2000 and today.

Greenfield town centre: 2000 and todayRiverMain RdFarmlandCar parkFactoryHouses2000RiverMain RdShoppingcentreCar parkApartmentsHousesParkToday

7 · Line graph with projections

The graph below shows the number of people aged 65 and over in Country Y from 2000, with projections to 2050.

Population aged 65 and over in Country Y (millions)0246810Projected200020102020203020402050millionsMenWomen

8 · Bar chart over years

The chart below shows the number of full-time and part-time students enrolled in online courses at Lakeside College from 2016 to 2024.

Students enrolled in online courses at Lakeside College (thousands)024681012thousands2120163220189620207820228112024Full-timePart-time
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Writing the Introduction – Body 1 – Body 2 – Conclusion

Paragraph formats + colour-coded model answers.

Sample prompt

The graph below shows the percentage of households with internet access in three countries between 2000 and 2020.

Households with internet access (%)02040608010020002005201020152020%Country ACountry BCountry C
Introduction · Paraphrase

Format: The [chart] + illustrates/compares + [what] + [where] + [when]

The line graph illustrates the proportion of homes with an internet connection in Countries A, B and C over a 20-year period starting in 2000.

Overview · Key features

Format: Overall, + general trend + standout item (no figures)

Overall, internet access rose considerably in all three nations, with Country A experiencing the most dramatic growth and ending the period with the highest figure. By contrast, Country C, which led initially, levelled off in the final five years.

Body 1 · First period

Format: Starting point → comparison → changes 2000–2010

In 2000, 35% of households in Country C were online, compared with 20% in Country A and just 10% in Country B. Over the following decade, the figure for Country C climbed steadily to 66%, while the rate in Country A tripled to 60%.

Body 2 · Later period

Format: Changes 2010–2020 → end point → notable feature

Between 2010 and 2015, Country A overtook Country C and went on to reach 85% in 2020, whereas the figure for Country C stabilised at 70% after 2015. Country B, despite starting from the lowest point, saw the fastest relative growth, rising sixfold to 60% by the end of the period.

≈ 170 words · Target band 7.0–7.5

h

Intro – Overview – Body by Band

Band 5.5 · 6.5 · 7.5 templates with examples and self-checking practice.

Introduction

Band 5.5

The [chart] shows [the number of N] in [place] from [year] to [year].

The graph shows the number of households with internet in three countries from 2000 to 2020.

Band 6.5

The [chart] illustrates [the proportion of N] in [place] between [year] and [year].

The line graph illustrates the proportion of homes with internet access in three countries between 2000 and 2020.

Band 7.5

The [chart] compares [how N changed] across [groups] over a [x]-year period, starting in [year].

The line graph compares how internet access in homes changed across three countries over a 20-year period, starting in 2000.

Overview

Band 5.5

Overall, [A] increased and [B] also increased.

Overall, internet access increased in all three countries.

Band 6.5

Overall, [all/most] saw an upward trend, and [A] had the highest figure at the end of the period.

Overall, all three countries saw an upward trend, and Country A had the highest figure by 2020.

Band 7.5

Overall, the most striking feature is [X], whereas [Y]. It is also noticeable that [Z].

Overall, the most striking feature is the rapid rise in Country A, whereas Country C levelled off. It is also noticeable that Country B grew fastest in relative terms.

Body 1 & Body 2

Band 5.5

In [year], [A] was [number]. Then it went up to [number] in [year].

In 2000, Country A was 20%. Then it went up to 85% in 2020.

Band 6.5

In [year], [A] stood at [number], compared with [number] for [B]. [A] then rose [adverb] to [number].

In 2000, the figure for Country A stood at 20%, compared with 35% for Country C. It then rose steadily to 85%.

Band 7.5

Starting at [number] in [year], [A] [verb + adverb], [participle clause], whereas [B] [verb] to [number].

Starting at 20% in 2000, the figure for Country A climbed rapidly, overtaking Country C before 2015, whereas Country C stabilised at 70%.

✍️ Practice

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Practice Games

Task 1 by type · GT letters · Task 2 by essay type. Tap to play — works well on phones.

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