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# Perception Versus Reality

Why do this problem?

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Age 14 to 18

Challenge Level

- Problem
- Getting Started
- Student Solutions
- Teachers' Resources

Why do this problem?

This problem challenges students to think about the way data can be presented to support an argument. There is the opportunity for cross-curricular collaboration as students look at communication and real world issues.

Show the video (and perhaps also the video from the USA linked at the bottom of the problem.

You could pause the video at each stage to allow students to reflect for themselves about their own perception of wealth distribution.

What makes the videos so powerful is the vast difference between people's perception and reality. Ask the class to think of their own areas of interest to find a question they would like to explore, and invite them to prepare presentations similar to the ones in the video. Students will need time to collect data and research their chosen topic.

Picturing the World invites students to think about data representation of large scale statistics in a slightly less politicised way.

Particularly powerful presentations could be shared with the rest of the school and the wider community, and perhaps shared through social media.

Can you make sense of information about trees in order to maximise the profits of a forestry company?

Like all sports rankings, the cricket ratings involve some maths. In this case, they use a mathematical technique known as exponential weighting. For those who want to know more, read on.

This short article gives an outline of the origins of Morse code and its inventor and how the frequency of letters is reflected in the code they were given.