Bar Charts
Ages 7–12Difficulty adapts to you
Bar Charts
A bar chart uses rectangular bars to show data. The height (or length) of each bar represents a value. Bar charts make it easy to compare different categories.
Your goals
- ✓You can read and create bar charts.
- ✓You can use scale, category correctly.
- ✓You can work out the scale interval before reading a bar.
Words to know
- scale:
- The values represented by equal intervals on an axis.
- category:
- A named group shown by a bar.
Examples
- 1A bar chart showing favourite fruits: Apple (8 votes), Banana (12), Orange (5).
- 2The tallest bar shows the most popular choice.
Check these
- • Do not assume each grid line represents 1.
- • Keep every number, symbol, label, and unit in its correct place.
- • Show enough working to check how you reached your answer.
Helpful habits
- • Read the whole question before choosing what to do.
- • Show one clear step at a time and check each step.
- • If you are stuck, draw a model, try smaller numbers, or revisit the example.
Now try your own
Create your own bar charts example, solve it, and explain how you checked it.
Professor Wise Owl
Wisdom & Understanding“Understanding "why" is more powerful than memorising "how".”