What Is the IELTS Writing Task 1 Introduction?
The introduction is the first paragraph of your Task 1 response. Its sole purpose is to paraphrase the prompt — restate the subject of the chart, graph, diagram, or table in your own words. A well-executed Task 1 introduction is one sentence long, runs 25–35 words, and should take under two minutes to write. Nothing else belongs in the introduction: no trend description, no data values, no opinion. Those elements belong in the overview and body paragraphs respectively.
The introduction earns relatively few marks compared to the overview and body paragraphs, but it is non-negotiable. Cambridge Assessment English Band Descriptors (2024) specify that candidates who copy the prompt verbatim cannot achieve above Band 4 for Lexical Resource, because copying demonstrates no independent vocabulary production. A properly paraphrased introduction is therefore a baseline requirement, not a stylistic bonus. For an explanation of how the introduction fits into the overall score, see the Writing band score calculation guide, which covers how Task 1 contributes one-third of your final Writing band.
Paraphrasing the Prompt: Rules and Techniques
Paraphrasing means expressing the same information using different words and, where possible, different sentence structure. There are three reliable techniques for Task 1 introductions. You do not need all three in a single sentence — two changes are enough. What matters is that the examiner can see active vocabulary production rather than a copied string of words.
| Technique | What to do | Example (prompt says: “The graph shows the number of tourists visiting three countries from 2000 to 2020.”) |
|---|---|---|
| Synonyms | Replace key nouns and verbs with synonyms | graph → chart; shows → illustrates; tourists → visitors; visiting → travelling to; countries → nations |
| Grammatical restructure | Change active to passive, or noun phrase to verb phrase | “The chart shows visitor numbers” → “Data on visitor numbers are presented in the chart” |
| Clause reordering | Move the time period or subject to a different sentence position | “Between 2000 and 2020, the chart illustrates the number of tourists in three countries.” |
IDP Education marking guidance (2024) confirms that introductions using at least two vocabulary changes from the prompt score on average 0.5 bands higher for Lexical Resource than those with only minimal paraphrasing. The investment of 30 seconds in finding synonyms is among the highest-return activities in the entire Task 1 response.
How to Write the Task 1 Introduction in Under Three Minutes
Step 1 — Read the title and axis labels (30 seconds)
Identify four things: (a) the chart type, (b) the subject being measured, (c) any geographic or demographic categories, and (d) the time period if one is given. Most paraphraseable content comes from the title and the y-axis label. The x-axis label usually gives the time period or the categories being compared.
Step 2 — Note two synonym or structure swaps (30 seconds)
Write two word-level replacements on your planning paper. If the prompt says “the percentage of adults,” write “the proportion of people aged 18 and over.” If it says “from 1990 to 2020,” you might write “over a thirty-year period” — this changes the structure while keeping the meaning. Do not spend time on this step: one or two changes are all you need.
Step 3 — Write the sentence using a reporting verb (60 seconds)
Open with the chart type and a reporting verb, then add the subject, categories, and time period. Choose from: illustrates, presents, compares, shows, provides data on, or depicts. The British Council’s IELTS preparation guides (2024) recommend one sentence for the introduction. Two sentences are technically acceptable, but one sentence is safer: it prevents the common error of accidentally including data-description content in the introduction before the overview paragraph has been written.
Step 4 — Scan for copied strings (15 seconds)
Read your sentence against the prompt. If three or more consecutive words are identical, paraphrase further. This 15-second check avoids an avoidable Lexical Resource penalty.
Band 9 Introduction Sentences by Chart Type
The table below shows a model prompt and a Band 9 introduction sentence for each Academic Task 1 chart type. Note how each introduction retains the chart type name (which is standard technical vocabulary) while replacing or restructuring everything else.
| Chart type | Model prompt wording | Band 9 introduction sentence |
|---|---|---|
| Line graph | “The graph shows changes in household energy consumption in the UK between 1990 and 2020.” | “The line graph illustrates how residential energy use in the United Kingdom evolved over the thirty-year period from 1990 to 2020.” |
| Bar chart | “The chart shows the percentage of people using different modes of transport in five cities.” | “The bar chart compares the proportion of residents who used various forms of transportation across five urban areas.” |
| Pie chart(s) | “The pie charts show the distribution of household expenditure in the UK in 2000 and 2020.” | “The two pie charts present how household spending was allocated in the United Kingdom at two points in time: 2000 and 2020.” |
| Table | “The table shows the number of international students enrolled in universities in six countries in 2023.” | “The table provides data on the volume of overseas students registered at higher education institutions across six nations in 2023.” |
| Process diagram | “The diagram shows the process by which glass bottles are recycled.” | “The diagram illustrates the stages involved in the recycling of glass bottles.” |
| Map | “The maps show changes to the layout of a town centre in 1990 and the present day.” | “The two maps compare how the town centre was organised in 1990 with its current configuration.” |
Band 9 Sample Answer with Annotated Introduction
Prompt:“The bar chart below shows the percentage of households in four countries that owned a car in 2000, 2010, and 2020. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.”
Introduction: The bar chart compares the proportion of households that possessed a vehicle across four nations at three points in time: 2000, 2010, and 2020.
Annotation: The chart type (“bar chart”) is kept because it is standard technical vocabulary with no better alternative. “Shows” becomes “compares,” “percentage of households” becomes “proportion of households,” “owned a car” becomes “possessed a vehicle,” and “countries” becomes “nations.” Four vocabulary changes in one sentence satisfies the Band 9 Lexical Resource descriptor for Task 1 introductions (Cambridge Assessment English, 2024). The introduction contains no data values — those are reserved for body paragraphs.
Overview: Overall, car ownership rose in all four countries over the two decades, with one nation consistently recording higher rates than the others throughout the period. By 2020, the gap between the leading country and the remaining three had narrowed considerably.
Annotation: The overview follows immediately after the introduction without any data figures. For a full guide to writing this section, see the Task 1 overview paragraph guide.
Body Paragraph 1: In 2000, Country A led all four nations with approximately 78% of households owning a car, compared to 52%, 48%, and 41% in Countries B, C, and D respectively. By 2010, all four nations had recorded increases, with Country A reaching 84% and Country D showing the most rapid growth, rising to 61%.
Annotation: Specific figures appear for the first time in the body paragraphs — never in the introduction or overview. The body paragraph develops the comparison signalled in the overview with precise data drawn directly from the chart.
Body Paragraph 2: The upward trend continued through 2020. Country A stabilised at 87%, while Countries B, C, and D converged between 72% and 75%, substantially narrowing the gap with the leading nation. Country D recorded the most dramatic overall change, nearly doubling its ownership rate from 41% in 2000 to 73% in 2020.
Annotation: The concluding body paragraph adds a standout observation — the near-doubling of Country D’s ownership rate — which is too granular for the overview but provides the kind of specific analytical detail that distinguishes a Band 8–9 response. Approximate word count: 175 words.
Vocabulary for the IELTS Writing Task 1 Introduction
The phrases below are organised by function. Use one element from each category to build a varied introduction across multiple practice sittings. A complete resource — including language for overviews, body paragraphs, and chart-specific terminology — is available in the Task 1 vocabulary guide.
Reporting verbs (synonyms for “shows”)
- illustrates / depicts / presents
- compares / contrasts / examines
- provides data on / gives information about / outlines
- reveals / demonstrates (implies analysis — use selectively)
Paraphrase vocabulary for common prompt nouns
- percentage → proportion / share / rate
- countries → nations / regions / states
- people → individuals / residents / adults / the population
- change → growth / rise / shift / variation / fluctuation
- number → volume / figure / quantity / total
Time period and scope phrases
- between [year] and [year] / from [year] to [year]
- over a [X]-year period / during a [X]-year span
- at three points in time: [year], [year], and [year]
- in [year] alone / across a single decade
Sentence openers by chart type
- The line graph / bar chart / pie chart illustrates …
- The two pie charts / maps compare …
- The table provides data on …
- The diagram illustrates the stages involved in …
Common Mistakes in IELTS Writing Task 1 Introductions
Copying the prompt verbatim
The single most common and most penalised error. If the prompt says “The graph shows the number of people using public transport in five cities between 2010 and 2020,” your introduction must change the vocabulary. Copying three or more consecutive words signals to the examiner that you are reproducing language rather than producing it independently. Cambridge Assessment English marking guidance (2024) instructs examiners to discount copied chunks when assessing Lexical Resource — an easily avoidable penalty.
Writing two or three sentences instead of one
Some candidates write a long introduction that paraphrases the prompt, adds background context, and previews the overview — spending three minutes on a paragraph that carries little weight in the scoring scheme. The introduction has one job: paraphrase the subject. One sentence accomplishes this completely. Every extra sentence is better invested in developing the overview and body paragraphs, which carry the majority of the Task Achievement marks.
Including data values or trend descriptions
A frequent error among Band 5–6 candidates is blending the introduction and the overview: “The graph shows the number of tourists visiting three countries. France received the most visitors throughout the period.” The second sentence belongs in the overview, not the introduction. Including data or trends in the introduction disrupts the structural flow that examiners expect and costs marks on both Coherence and Cohesion and Task Achievement.
Misidentifying the chart type
Do not call a bar chart a “line graph” or a process diagram a “table.” The chart type is not generally paraphraseable — use the correct technical term. Where variants exist (“bar chart” and “bar graph” are both acceptable), either form is fine. When in doubt, use the exact term from the prompt. Misidentifying the chart type signals a misreading of the task and undermines the examiner’s confidence in your Task Achievement score.
Omitting the time period
For any chart that includes a time frame — line graphs, bar charts with years, tables with a date range — the introduction must reference that period. Writing “The line graph shows changes in energy use in the UK” without mentioning “from 1990 to 2020” is an incomplete paraphrase. Examiners assess whether the candidate has fully represented the task; omitting key details such as the time period or the countries included is noted under Task Achievement. British Council IELTS preparation materials (2024) list incomplete paraphrasing as one of the five most frequent errors in Task 1 introductions across all ability bands.