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How Do Kids Find the Perimeter of the Playground?
peri = around meter
= to measure
We took our brains outside to experience
perimeter.
This is an example of placing the math content in a real context.
Perimeter Mathematicians |
We measured each student's pace
length.
This one was 24 inches. |
We walked from corner to corner, 15 seconds
apart. We paced all four sides of our huge playground,
counting as we
walked. We counted and collected data at each corner of the
playground.
Adding the total paces around the
playground...
We used calculators to multiply our
pace lengths times the number we
counted.
We divided by 12 inches to find how many feet.
Our estimates of the
playground using our paces gave us a high of 1008 and a
low of 699
feet.
Most numbers were from 758 to 830 feet.
Next we decided to measure the actual distance using a 100 foot tape
measure.
We compared our pace estimate of the perimeter, with the
actual measurement of the perimeter.
And the actual length was 917 feet.
Practice finding the perimeter of other shapes: https://www.ixl.com/math/grade-3/perimeter-find-the-missing-side-length
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