Calibration Game 3

Try the range questions again but this time:

• Consider any facts that you do know about the topic

• Consider any facts you know that might provide insight– for instance you might not know the distance between any capital world cities; but it will be less than ½ the circumference of the earth (circumference is 25,000 miles / 40,000km at the equator. 

• Think about the upper and lower estimate independently rather than using one as a reference for the other.

• Identify what would be ‘extreme’ values for the upper and lower estimates and then consider reasons to make the range narrower.
   

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