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Measurement Session 7: Notes
 
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Notes for Session 7, Part A


Note 2

If you do not have a bicycle wheel available, you can start this section by estimating the circumference of different circular objects, such as the rim of a large bowl or can. Cut a piece of string the length of the estimate and then compare the estimate to the actual circumference. Most people grossly underestimate circumference.

<< back to Part A: Circles and Circumference


 

Note 3

It is important to measure as accurately as possible to avoid measurement errors.

<< back to Part A: Circles and Circumference


 

Note 4

You can again measure the diameter of the bicycle wheel and then use that to estimate the circumference based on observations you make in this problem.

<< back to Part A: Circles and Circumference


 

Note 5

Entering coordinates (diameter and circumference) for more than five objects might show a better approximation of a line. You can also find the line of best fit to see the patterns. To learn more about scatter plots and the line of best fit, go to Learning Math: Data Analysis, Statistics, and Probability, and find Session 7, Part A and Part D respectively.

<< back to Part A: Circles and Circumference


 

Note 6

To learn more about irrational numbers, go to Learning Math: Number and Operations, Session 1, Part C, and Session 2.

<< back to Part A: Circles and Circumference


 

Note 7

To learn more about mean, go to Learning Math: Data Analysis, Statistics, and Probability, Session 5.

<< back to Part A: Circles and Circumference

 

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