Read tables, charts, and graphs
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The idea in everyday life
Identify the question, units, categories, timeframe, scale, and comparison a visual data display supports.
A chart is an argument about what to compare; labels and scale determine whether the argument is fair.
One step at a time.
Use the sample or information you have permission to use. Keep your work as you go. You can pause between steps.
- 1
Read the title, source, date, axes, legend, units, and population before interpreting a pattern.
- 2
Describe the highest, lowest, change, gap, or trend using the exact timeframe and groups shown.
- 3
Check for missing data, truncated scale, unequal categories, or a visual choice that could exaggerate a difference.
See how it works.
Nia notices a bar chart starts at 80 rather than zero, so she reports the small difference in values instead of the dramatic visual gap.
Did you cover these?
- Your work includes a chart-reading brief with three supported observations, one limit, and one question for the data owner.
- Check this common mistake: Describing a trend without checking the denominator, time period, source, or scale.
- Every observation can be traced to a labeled part of the display and avoids claims the chart cannot support.
What to finish
A chart-reading brief with three supported observations, one limit, and one question for the data owner.
Watch for this
Describing a trend without checking the denominator, time period, source, or scale.
How can I tell I understand it?
Every observation can be traced to a labeled part of the display and avoids claims the chart cannot support.
Quick knowledge check
Answer all 3 questions. Get at least 2 right and the lesson completes automatically.
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Answer all 3 questions above and get at least 2 right. You can review the explanations and try again.
Go to the knowledge checkOptional course overview video · same video as Lesson 1
Calculating Wages: The Pay-Rate-Hour Triangle
From TabletClass Math. Watch here or open it on YouTube .
Watch for an idea you can use in the practice below. You can pause or skip this optional overview.Tools, templates, and lesson sources
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