This document discusses measuring the circumference of a bicycle wheel to estimate the value of pi, which is the ratio of a circle's circumference to its diameter. It provides instructions on using a string to measure the wheel's circumference and diameter to calculate this ratio. The goal is for students to understand that pi is an approximately 3.14 ratio that is constant regardless of the circle's size.

1. Module 3 Lesson 16.notebook January 29, 2016
AIM: The Most Famous
Ratio of All
1/29/16 1. Homework: Problem
Set 16 #2, 5, 6Module 3 Lesson 16
2. Cumulative Review
Sheet due Wednesday
Do Now

2. Module 3 Lesson 16.notebook January 29, 2016
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4. Module 3 Lesson 16.notebook January 29, 2016
Example 1: The Bicycle Wheel
Materials: Large Wheel, String, Tape or Chalk
How to measure the circumference of the
wheel with a piece of string.
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5. Module 3 Lesson 16.notebook January 29, 2016
Example 1: The Bicycle Wheel
The circumference of any circle is always the same multiple of the
diameter. Mathematicians call this number pi. It is one of the few
numbers that is so special it has its own name. Let‛s see if we can
estimate the value of pi.
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6. Module 3 Lesson 16.notebook January 29, 2016
Finding Pi
C = ______
d = ______
C
d = _______

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8. Module 3 Lesson 16.notebook January 29, 2016
Circumference Formula
C = d
d

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exact answer in terms of Pi.

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