Activities For Pi Mathematics

# Activities For Mathematics

### Introduction

is the focus of this project. It includes a variety of activities to help you learn about . You will discover the approximate value of . You will use measurement and report data.

In the History section you will be able to explore the history of using the World Wide Web. " Calculations Over Time" will link you to Internet sites on mathematicians who have calculated .

In the Information/Video section there are Fun Things About , Kathleen Smith's award- winning hyperstack, "A Slice of Pi", and a video called "A Pizza Project on ".

You can send us information about your favorite pizza in the Project section. You will have the opportunity to participate with other students throughout the world on this collaborative project. Results of this project will be available on Day, the fourteenth of March ( 3/14).

In the Application section you will apply formulas and do some practical problem solving. Visit and calculate the circumferences of the planets; then check your calculations using Internet resources.

#### Materials:

• measuring tape
• string
• ruler or meter stick

#### Objects to be measured:

• juice can
• soup can
• coffee can
• oatmeal box top
• garbage can top
• fruit can

#### Directions:

Use the measuring tape or the string and ruler/meter stick to measure the circumference of the tops of the objects. Then measure the length of the diameter.

List these measurements in a table like the one below:

• How does the measurement of the circumference compare to the measurement of the diameter? Is it twice as large? Is it three times as large or more than three times as large?

This comparison is the ratio of the circumference to the diameter of the circle. This ratio is called .

• In the column marked COMPARISON, list the answer for the circumference divided by the diameter.

• The values we use for are 3.l4, 3.l4l6 or 3 l/7. If you would like to see the value of to 1000 places, click here. Some other values of that have been calculated can be found at History.

• Now take your values of and round them to the nearest hundredth.

#### Thoughts to Consider:

• Compare your value to 3.14. Was your calculation greater or less than the 3.l4 value of ?

• Are the values of consistent? Why or why not?

• What reasons do you think would account for these differences?

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