The Challenge: Create a Scale Map 
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Now that we have a meter measurement, what can we use to make the mapping of distances
easier?
We used two measuring devices: a wheel and a length of string. The circumference of a wheel from a wheelbarrow was approximately 1 meter and by pushing it forward and counting each turn of the wheel, we could make meter measurements. We used a length of string with knots every 10 meters as a second check.
Measuring distances using the wheel
How do we measure it if we can't get there?
