1. Collect Homework.
2. Distribute Rulers, Protractors, and Mini golf worksheets.
Have students experiment to find the point that yields the minimum distance - this is also the point at which the ball would rebound and go in the hole.
Show geometric proof. Have students set up the calculus proof.
Worksheet on Billiards and Mini Golf
3. Example:
Problem #2-2 from the December 3, 1991 Virginia Math League Contest
Given: The sum of the lengths of the 2 legs of a right triangle is 20 inches. What is the smallest possible length of the hypotenuse of this triangle?
Solution:
Let x = length of one leg.
Then 20 - x = the length of other leg.
Let c = length of hypotenuse.
4. Video on Billiards (ESPN)