IELTS Prep Part 3: Writing Task 1 Academic — The Six Chart Types
IELTS Prep Part 3: Writing Task 1 Academic — The Six Chart Types
IELTS9 min readAug 19, 2026Updated Sep 13, 2026

IELTS Prep Part 3: The Six Chart Types

IELTS Prep Part 3: The Six Chart Types
9 min read · 1,746 words

In one line: IELTS Prep Part 3: Task 1 Academic asks you to summarise a visual in ~150 words – six chart families, one fixed structure, and a language bank per type.

Task 1 Academic asks you to summarise a visual in ~150 words. Therefore, Six chart families, one fixed structure, and a language bank per type. This note gives the structure, the per type approach, and the vocabulary that scores.

Quick Answer:Task 1 Academic asks you to summarise a visual in ~150 words. Meanwhile, Six chart families, one fixed structure, and a language bank per type. This note gives the structure, the per type approach, and the vocabulary that scores.

Table of Contents

  1. The Task Card
  2. The Four-Paragraph Structure
  3. The Six Chart Types and Their Angles
  4. The Language Bank
  5. The Errors That Cost Bands
  6. How Exams Probe This Topic
  7. Quick Revision: One-Glance Facts

1. The Task Card

  • The format. One visual (or a pair), 20 minutes, 150+ words minimum; you report – no opinions; the visual types: line graph, bar chart, pie chart, table, process diagram, map – alone or combined.
  • The criteria. Task Achievement (the data’s selection-and overview), Coherence (the logical grouping), Lexical Resource and Grammar (the variety-and accuracy) – Part 6’s descriptors applied to reporting.

2. The Four-Paragraph Structure

  1. Introduction (1 sentence): paraphrase the prompt – change the words (“the graph illustrates/shows/compares”), never copy verbatim.
  2. Overview (1-2 sentences): the main trends – the most notable features overall (the highest, the lowest, the direction of change, the striking contrast) – no numbers in the overview; this paragraph alone decides Task Achievement more than any other.
  3. Body 1: the first logical group (the detailed data – key figures, comparisons).
  4. Body 2: the second group – grouped by trend, category, or time, not by describing everything in sequence.

3. Consequently, The Six Chart Types and Their Angles

  1. Line graph – movement language: rose/climbed/peaked/declined/plummeted; the adverbs (sharply, gradually, steadily); the phases (the initial rise, the plateau, the dip).
  2. Bar chart – comparison language: the largest/smallest, twice as high as, comparable to; group the bars by pattern.
  3. Pie chart – proportion language: accounted for, made up, constituted (X per cent); the share language with fractions (a quarter, just under half).
  4. Table – the hardest: find the extremes and contrasts across rows-and columns; select the significant, ignore the rest.
  5. Process diagram – the passive sequence: is poured, is then mixed, is transferred; the staging (the first stage, subsequently); the end-product’s arrival.
  6. Map – change language: was converted into, was demolished, was extended northward; the before after (or the proposed-development) comparison.

4. The Language Bank

  • Trend verbs + adverbs: increased significantly, fell slightly, fluctuated, remained stable at.
  • Degrees of comparison: significantly higher, marginally lower, by far the largest, three times as many.
  • Linking the data: whereas, while, in contrast, similarly, meanwhile, followed by.
  • Approximation: just over, approximately, nearly, around – for precision without false exactness.
  • Structures: “the number of X, which stood at Y in 1990, reached Z by 2010” – the relative clause embedding that lifts Grammatical Range.

5. Furthermore, The Errors That Cost Bands

  • The no overview essay – the Task Achievement cap at 5-6.
  • Everything-described – listing every data point without selection caps Achievement.
  • Opinions-and analysis (“this is worrying”) – reporting only.
  • The memorised template padding – long formulaic intros eat the 20 minutes and read as formulaic (a Lexical penalty).
  • The invented data – a wrong figure or date is a Task Achievement deduction.
  • Word count risk – under 150 = penalised; counting words wastes time – know your ~10-sentence template’s length.

6. However, How Exams Probe This Topic

  • The practice regime: one Task 1 every alternate day in the final month (Part 8’s cycle); the official Cambridge samples as the model comparison bank.
  • The evaluation: descriptor checked feedback (Part 6’s criterion diagnosis – usually the overview’s absence).

7. Quick Revision: One-Glance Facts

  • Structure. Paraphrased intro  numberless overview  two grouped bodies.
  • Selection rule. The significant (extremes, contrasts, changes) – never everything.
  • Type-verbs. Trend (rise-fall), comparison (largest-twice), proportion (accounted for), process (the passive), map (was converted).
  • Bans. No opinions, no invented data, no template padding, no missing overview.

Conclusion. Moreover, Task 1 is report writing to a formula: the four paragraph frame with its non negotiable overview. The type specific language bank, and the selection discipline. In fact, Drill one chart a day against model answers, fix the overview habit first. It is the single highest return correction in IELTS writing.

Practice Corner: Five Chart Checks (with Answers)

  1. The overview’s rule? – The main trends, no numbers – the paragraph that decides Task Achievement.
  2. The six chart types? – Line, bar, pie, table, process, map.
  3. The process diagram’s grammar? – The passive sequence: is poured, is then mixed, is transferred.
  4. The map’s change-language? – Was converted into, was demolished, was extended northward.
  5. The ban list? – No opinions, no invented data, no template padding, never skip the overview.

Model Overview Sentences (Adaptable to Any Data)

Line graph: “Overall, online sales rose steadily over the period, while in store sales declined after an initial plateau, with the two trends crossing in 2015.” Bar chart: “The chart shows that Company A dominated every category, though its lead was narrowest in the overseas segment.” Pie pair: “Across both years, housing remained the largest item of expenditure, while the transport share halved.” Table: “Income levels varied widely between regions, with the northern states reporting roughly double the figures of the southern ones.” Four sentences, four chart families – internalise their architecture (overall trend + the striking contrast + one specific anchor), and any visual’s overview can be assembled in ninety seconds, leaving fifteen minutes for the data paragraphs where the remaining marks live.

Six Fully-Worked Overview Paragraphs (The Model Bank)

Line graph (two trends): “Overall, online sales rose steadily throughout the period while in store sales declined after an early plateau, the two trajectories crossing in 2015, by which point digital purchases had overtaken physical ones.”
Bar chart (comparison): “Company A led in every category, though its advantage was narrowest in the overseas segment, where the three firms recorded broadly similar figures.”
Pie pair (change over time): “Housing remained the largest item of expenditure in both years; the most striking shift, however, was in transport, whose share halved from 20% to 10%.”
Table (extremes): “The data reveal wide regional disparities, with the northern states reporting roughly double the income levels of their southern counterparts, while the east lagged furthest on every measure.”
Process (linear): “The sequence begins with the harvesting of raw cane and ends with packaged sugar ready for distribution, comprising five stages in total, three of which involve heating.”
Map (before after):“The most dramatic change over the period was the replacement of the industrial dockland in the north with a residential and leisure complex. Notably, Alongside the expansion of the road bridge to the east.”
Six skeletons covering the whole task type surface. Each states the overview’s two required elements (the dominant feature plus the notable contrast or change) without a single figure. Specifically, Internalise the architecture and any visual’s overview assembles in ninety seconds.

The Common Errors Ledger (What Actually Loses Bands)

From thousands of marked Task-1 scripts, the recurring deductions in order of frequency: the missing or buried overview (Task Achievement capped at 6); copying the prompt verbatim in the introduction (Lexical penalty – always paraphrase); describing every data point (selection failure. In other words, Report the significant, ignore the rest); inventing reasons and opinions (“this rise is probably because of the internet” – reporting. Not explaining); unit and date errors (a wrong year is a factual penalty). Indeed, And word count gambling (under 150 = automatic cap). Six error-families, six fixes – and the self marking protocol against this ledger converts each practice essay into its own diagnostic.

Read next: IELTS Prep Part 8: The 8-Week Practice-Test Cycle

Frequently Asked Questions

What should you know about 1. The Task Card?

The format. One visual (or a pair), 20 minutes, 150+ words minimum; you report – no opinions; the visual types: line graph, bar chart, pie chart, table, process diagram, map – alone or combined. The criteria. Task Achievement (the data’s selection-and overview), Coherence (the logical grouping), Lexical Resource and Grammar (the variety-and accuracy) – Part 6’s descriptors applied to reporting.

What should you know about 2. The Four-Paragraph Structure?

Introduction (1 sentence): paraphrase the prompt – change the words (“the graph illustrates/shows/compares”), never copy verbatim. Overview (1-2 sentences): the main trends – the most notable features overall (the highest, the lowest, the direction of change, the striking contrast) – no numbers in the overview; this paragraph alone decides Task Achievement more than any other.

What should you know about 3. Similarly, The Six Chart Types and Their Angles?

Line graph – movement language: rose/climbed/peaked/declined/plummeted; the adverbs (sharply, gradually, steadily); the phases (the initial rise, the plateau, the dip). Bar chart – comparison language: the largest/smallest, twice as high as, comparable to; group the bars by pattern.

What should you know about 4. The Language Bank?

Trend verbs + adverbs: increased significantly, fell slightly, fluctuated, remained stable at. Degrees of comparison: significantly higher, marginally lower, by far the largest, three times as many. Linking the data: whereas, while, in contrast, similarly, meanwhile, followed by. Approximation: just over, approximately, nearly, around – for precision without false exactness.

What should you know about 5. Therefore, The Errors That Cost Bands?

The no overview essay – the Task Achievement cap at 5-6. Everything-described – listing every data point without selection caps Achievement. Opinions-and analysis (“this is worrying”) – reporting only. The memorised template padding – long formulaic intros eat the 20 minutes and read as formulaic (a Lexical penalty).

References & authoritative sources

Source: compiled from official notifications, standard textbooks and our own mock-test analytics; last reviewed September 2026.

Quick revision

  • The Four-Paragraph Structure
  • The Six Chart Types and Their Angles
  • The Errors That Cost Bands
  • How Exams Probe This Topic
  • Quick Revision: One-Glance Facts
  • The format.: One visual (or a pair), 20 minutes, 150+ words minimum; you report – no opinions; the visual types: line graph, bar chart, pie chart, table,…
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Sources & official references

External references for fact-checking and further reading.