Students will be able to identify and calculate the ratio of a wheel's circumference to its diameter. A ratio is a comparison of two things, such as black and white bricks.
Ratios are a common math tool.
These are ratios to tire and auto manufacturers. Require students to measure the diameter and circumference of the smallest tire. Require students to calculate the ratio of circumference to diameter of the smallest tire. Require students to convert the fraction to a decimal. Repeat the experiment for the other two tires.