Rolling a circle to find pi
1. Create a table (t-chart) to show the relationship between diameter and circumference.
2. Move the blue dot to change the diameter of the circle. (try to get a whole number.) Record this value in the table.
3. Roll the circle find the circumference. Record this value in the table.
4. Repeat this at least 7 times.
5. Find the "relationship (rate) between the diameter and circumference. (Divide C ÷ d)