Level: Level 12: Measurement & Data
Topic: Reading graphs
Description:
Reading graphs is the skill of understanding and interpreting information shown visually in charts or graphs. Graphs help us compare data, see trends, and make sense of numbers quickly. Common types of graphs include bar graphs, line graphs, and pie charts.
To read a graph, follow these steps:
1. Look at the title to understand what the graph is about.
2. Check the axes labels (for bar and line graphs) to know what is being measured.
3. Observe the data points, bars, or segments to gather information.
4. Look for trends, patterns, or comparisons in the data.
Example 1: Reading a Bar Graph
A bar graph shows the number of apples sold in four days:
- Monday: 10 apples
- Tuesday: 15 apples
- Wednesday: 20 apples
- Thursday: 5 apples
Question: On which day were the most apples sold?
Answer: Wednesday (20 apples).
Example 2: Reading a Line Graph
A line graph shows a person’s running distance over time:
- Week 1: 2 miles
- Week 2: 4 miles
- Week 3: 6 miles
- Week 4: 8 miles
Question: What is the pattern in the data?
Answer: The person increases their distance by 2 miles each week.
Reading graphs makes it easier to analyze and communicate data effectively in many real-world situations, like tracking progress, comparing results, or making decisions.
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