Task 1 - Line Graph
📌 IELTS Writing Task 1 Overview
Task 1 always includes the following three elements:
▸ 1) A Brief Description of the Graphic
• A short section explaining what the graphic is
▸ 2) Instructions
• "Summarise the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words."
▸ 3) Graphics
• Line graph
• Bar chart
• Pie chart
• Table
• Map
• Process diagram
• Multiple charts (a combination of the above charts)
▸ Key Requirements
Task 1 mainly tests whether you can:
→ 1. Identify the most important information
→ 2. Group information logically
→ 3. Compare data clearly
→ 4. Describe trends and changes
→ 5. Use accurate grammar and vocabulary
→ 6. Avoid unnecessary or invented details
📌 Trend Data Overview
▸ What Is Trend Data?
• In Task 1, trend data means the visual shows how figures change over time. The time period may be shown in: years, months, weeks, days, decades, specific time points.
• The main skill is not just comparing numbers. The main skill is showing:
→ what increased, what decreased, what stayed stable, what fluctuated, what reached a peak, what reached a low point, what changed the most or least
▸ What Should You Focus On?
• overall upward or downward trends
• starting and ending points
• highest and lowest points
• sharp or gradual changes
• periods of stability
• fluctuations
• similarities and differences between trends
📌 Strategy for Writing - Trend Data
▸ STEP 1. Understand the Task
The instructions are always the same: "Summarise the information by selecting and reporting the main features, and make comparisons where relevant."
For trend data, "main features" usually means the biggest changes over time.
▸ STEP 2. Plan Your Answer (4-Paragraph Structure, at Least 150 Words)
→ 1. Paraphrase the description
→ 2. Write an overview paragraph
→ 3. Write two body paragraphs
※ No conclusion needed.
▸ STEP 3. Choose the Right Grouping Method
For trend data, you can group information by:
→ lines/categories that increased
→ lines/categories that decreased
→ lines/categories with similar patterns
→ lines/categories with opposite patterns
→ earlier period vs later period
→ most dramatic changes vs more stable changes
📌 Line Graph
▸ What Line Charts Usually Show
Line charts show changes over time. They may show changes in: population, sales, income, spending, unemployment rates, energy use, student numbers, internet usage, birth rates, production levels, etc.
Your job is to describe the main trends, not every point on the line.
▸ Two Main Types of Line Charts
◆ 1. Single-line charts
These show the change of one category over time. Focus on:
→ where the figure started
→ whether it rose, fell, fluctuated, or stayed stable
→ the highest and lowest points
→ where the figure ended
Useful language:
→ increased steadily
→ declined gradually
→ fluctuated noticeably
→ remained stable
→ reached a peak
→ fell to its lowest point
→ ended higher/lower than it began
◆ 2. Multiple-line charts
These show changes in two or more categories over time. Focus on:
→ which line was highest or lowest at the start
→ which line was highest or lowest at the end
→ which line increased or decreased the most
→ whether any lines crossed
→ whether the categories followed similar or opposite trends
Useful language:
→ X rose more sharply than Y
→ X remained higher than Y throughout the period
→ X overtook Y in 2010
→ X and Y followed similar upward trends
→ X increased, while Y declined
▸ Essay Structure for Line Charts (4 Paragraphs)
◆ 1) Introduction
→ Paraphrase the description of the chart
◆ 2) Overview Paragraph
→ Summarize 2–3 of the most prominent trends
→ Mention the general direction of change
→ Do not include specific figures
◆ 3) Body Paragraph 1
Describe the first main group of data. Possible grouping methods:
→ categories that increased
→ the highest or most important line
→ the first half of the time period
→ lines with similar trends
◆ 4) Body Paragraph 2
Describe the remaining major data. Possible grouping methods:
→ categories that decreased
→ lower or less important lines
→ the second half of the time period
→ lines with contrasting trends
※ No conclusion needed.
📌 Reminders
• Spend only 20 minutes on Task 1 — Task 1 is worth half of the Task 2 score.
• Do not describe every data point — Focus on the beginning, end, peak, low point, and major changes.
• Focus on the overall trend first — Before writing details, decide whether each line generally rises, falls, fluctuates, or stays stable.
• Compare the lines, not just the numbers — In multiple-line charts, explain how the trends are similar or different.
• Be careful with units — Always check whether the chart shows percentages, numbers of people, millions, dollars, hours, or another unit.