← Blog

How to Write IELTS Writing Task 1 for Each Chart Type

Task 1 is the most winnable part of IELTS Writing, yet it is where many candidates lose marks needlessly by misreading the data or skipping the overview. This guide covers a safe structure and how to handle each chart type.

What Task 1 asks for and how it is marked

Task 1 asks you to describe given data — no personal opinion, no explaining causes. That is the biggest difference from Task 2, and it is the first mistake that costs candidates Task Achievement marks.

It is marked on four criteria: Task Achievement, Coherence & Cohesion, Lexical Resource, and Grammatical Range & Accuracy. For Task 1, Task Achievement depends heavily on selecting the right standout information and describing the figures accurately.

How to handle each chart type

Line graph: focus on trends over time — rises, falls, plateaus, peaks, and troughs. This type needs the widest vocabulary for describing movement.

Bar chart and pie chart: focus on comparison between groups and relative proportions rather than trends.

Table: lots of numbers, but not all of them are worth writing about. Pick the highest, the lowest, and anything anomalous.

Mixed charts: handle each chart in turn, then connect them in the overview.

Map: describe change across space and time — what was added, removed, or relocated.

Process: describe the steps in order, using the passive voice and sequencing connectives.

A safe structure for any type

1. Introduction: paraphrase the prompt in your own words; do not copy it verbatim.

2. Overview: state the 2-3 most striking features without detailed figures. This is the single most important paragraph in Task 1.

3-4. Two body paragraphs: group the data logically and support it with figures.

Task 1 needs no conclusion — the overview already does that job.

FAQ

Does Task 1 need a personal opinion?

No. Task 1 only asks you to describe the given data. Adding an opinion or speculating about causes lowers your Task Achievement score because you are writing beyond what the prompt asks.

Is the overview mandatory?

Yes. Missing the overview is one of the fastest ways to cap your Task Achievement score, no matter how accurate the rest of your figures are.

Submit a Task 1 response

Get an estimated band per criterion, with data errors marked right inside your text. Free to start.

Grade my writing free