Guides ยท Math
Basic Graph Literacy Basics
Read charts without getting misled
This guide teaches practical graph literacy: interpret axes and units, notice truncation and scaling, understand uncertainty, and choose correct chart types for comparisons over time or categories.
- graphs
- charts
- axes
- data visualization
- misleading
Check axes and units
Confirm what is measured, in what units, and whether axes start at zero where appropriate.
Watch scaling tricks
Truncated axes and stretched scales can exaggerate or hide differences.
Look for uncertainty
Prefer charts with error bars or ranges when variability matters.
Match chart to question
Use lines for time trends, bars for categories, and avoid 3D effects.