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IELTS Academic Writing Task 1: describe the main features, not every number

A useful Task 1 report groups the data, makes the biggest comparisons and gives the reader a clear overview. Use this guide to practise those decisions before writing a full response.

What the task asks you to do

In Academic Writing Task 1, you describe visual information such as a graph, table, chart or diagram. IELTS says to write at least 150 words and spend about 20 minutes. Task 2 contributes twice as much to the Writing score, so protect time for it.

A report is not a list of every value. Identify the overall pattern first, then select figures that support it. For a process, describe the main stages in a logical order instead of forcing a trend where there is none.

Write the overview before the details

Ask two questions: What changes most? What stays similar or stands out? Your overview should answer these without becoming a paragraph of figures. A reader who sees only the overview should still understand the chart's main message.

Useful overview pattern: Overall, [the biggest trend], while [the main contrast or exception].

This is a planning aid, not a sentence to memorise. Adjust the wording to the actual chart. If two categories move in opposite directions, make that contrast explicit.

Try a small chart exercise

Imagine a survey of how university students travelled to campus. These figures are fictional practice data.

Mode20102020
Bus40%28%
Bicycle15%30%
Car35%32%
Walking10%10%

Before writing, decide which two changes matter most. Here, cycling doubled and bus use fell markedly. Walking did not change; car use moved only slightly.

Model overview: Overall, cycling became much more common over the decade, whereas bus travel declined. Walking remained unchanged, and the proportion travelling by car changed only a little.

For detail paragraphs, group bus and bicycle together as the biggest shifts, then compare car and walking. Quote only the figures that support those points.

A clear four-paragraph plan

  1. Introduction: Paraphrase what the visual shows, including place and time if supplied.
  2. Overview: State the two most important patterns or stages.
  3. Details 1: Compare the largest or most closely related features with accurate figures.
  4. Details 2: Cover the remaining important contrast or exception.

Use the time period to choose tense. Check units before comparing values: 30% is a share, while 30 students is a count.

Self-check before submitting

  • Did the overview identify the main patterns without inventing a cause?
  • Are the key comparisons supported by correct numbers and units?
  • Did you describe what the chart shows rather than give your opinion?
  • Are verb tenses, plurals and comparisons accurate?
Scorify provides AI practice feedback and estimated bands. It is not an official IELTS examiner or test centre.

Practise Writing Task 1

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Official reference

Check the current format and marking criteria on the official IELTS Academic Writing page.