Pie charts appear frequently in IELTS Academic Task 1, either as a single chart or as a pair for comparison. Their apparent simplicity is deceptive — many candidates score only Band 5–6 because they list percentages without showing analytical understanding. This guide shows you how to identify patterns, group segments meaningfully, and use proportional language that earns higher band scores.
1Reading the Pie Chart Before You Write
Before writing a single word, spend 60–90 seconds analysing the chart. Identify: the largest segment (dominant category), the smallest segment, any segments of roughly equal size, and whether the chart represents one time period or two (comparison pie charts). If there are two pie charts, also identify which segments grew and which shrank between the two periods. Circling or mentally marking these key features before writing ensures your overview captures the most important information rather than the first thing you notice.
2Grouping Segments into Logical Categories
Rather than describing each segment sequentially, group them. For instance, if a pie chart shows national budget allocation, you might group education and healthcare together as 'social spending' and describe them collectively. Or group the two largest segments in one sentence and the two smallest in another. A model structure: Paragraph 1 (overview) — the dominant segment and the overall pattern. Paragraph 2 (body 1) — the largest two or three segments with precise percentages. Paragraph 3 (body 2) — the smaller segments and any notable proportional similarities. This structure avoids the common error of writing one sentence per segment.
3Language for Proportions and Percentages
Use a variety of structures for reporting percentages and proportions: 'accounted for 35% of the total', 'made up nearly a third', 'represented the largest share at 42%', 'constituted just 8% of expenditure', 'was responsible for over half of all spending'. For comparisons: 'was more than double that of', 'was approximately equal to', 'was slightly larger than'. For two-chart comparisons: 'increased by 12 percentage points', 'fell from 30% to 18%', 'remained relatively stable at around 25%'. Avoid simply writing 'X was Y%' in every sentence — this limits your Lexical Resource score severely.
4The Two-Pie Chart Comparison Strategy
When given two pie charts (typically different years), the key challenge is comparing change over time. Your overview should state which segment changed most dramatically. Then in the body, compare corresponding segments: 'The proportion devoted to transport rose considerably from 15% in 2000 to 28% in 2020, making it the second largest category by the end of the period. Conversely, the share allocated to agriculture fell sharply from 35% to just 14%, dropping from the largest to the smallest segment.' This directly addresses change, which is the core analytical task for two-chart questions.
🎯 Key Takeaway
Pie charts reward candidates who group, compare, and use precise proportional language. Resist the temptation to describe each slice individually. Group and compare, and your analytical ability — exactly what Task Achievement assesses — will shine through.