Bar Charts vs Line Graphs
The key difference: bar charts focus on comparison across categories, while line graphs track change over time. Your language must reflect this distinction.
For bar charts, your main task is identifying and describing the most significant comparisons — not listing every bar from left to right.
The Grouping Strategy
Never describe bars left to right. Instead, group similar values and compare them.
For example, if the chart shows employment by industry for men and women:
- Group 1: Industries dominated by men (engineering, construction)
- Group 2: Industries dominated by women (healthcare, education)
- Group 3: Industries with roughly equal figures
Grouping shows the examiner you understand the pattern in the data, not just the individual values. This is exactly what Band 7+ responses do.
Essential Comparison Language
| Function | Phrases |
|---|---|
| Biggest/highest | recorded the highest figure / had the largest share |
| Smallest/lowest | saw the lowest proportion / had the smallest percentage |
| Similarity | similarly / likewise / comparable to / in line with |
| Difference | while / whereas / in contrast / by comparison |
| Approximation | approximately / roughly / around / just over / just under |
Sample Sentence Structures
Comparing two categories: While men accounted for 65% of engineers, women made up only 18% — a gap of nearly 50 percentage points.
Describing the highest: Construction recorded the highest male participation at 78%, almost three times the female figure of 27%.
Noting similarity: Healthcare and education showed broadly similar patterns, with women outnumbering men by a ratio of roughly 2:1 in both sectors.
Do not use “we can see that” or “the chart shows that” repeatedly — this is very informal. Start sentences with the subject directly: “The figure for X was…”
Grouped vs Stacked Bars
For grouped bars: compare within each group first, then note patterns across groups.
For stacked bars: describe the total height first, then the relative proportion of each segment.
For a bar chart overview, identify: which category is highest overall, which is lowest, and whether there is a clear pattern (e.g. men consistently outnumber women, or figures increase with age).