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# Scale activity

This is one type of a misleading graph. The activity begins with a discussion about the graph. Students are then asked to write about the same information when the graph is drawn accurately.

#### Average house prices

#### Discussion points

- What is the headline?
- Glancing at the graph, by how much do you think house prices have risen?
- What do you notice about the vertical scale on the graph?
- Why is the representation misleading?
- Why do you think a newspaper would produce a graph such as this?

#### Activity

This graph has used the same information but with a correct scale.

#### Average house prices

Now imagine you are a journalist about to write an article. What would the headline be?

Write a paragraph for the newspaper using the mathematical information. Include the approximate percentage rise in prices.

#### Further activity

Collect graphs that appear in your local media. Are any misleading or confusing?