James Bernard brings only the 2nd ever mathematically significant roadsign from Colorado. Colorado is an amazingly challenging state to play Road Sign Math. Mr. Bernard had passed this sign many, many times. Every time he thought “darn, so close!”

Mr. Bernard churned on this sign for a while, and then it hit him! The cosine of 720 is 1!

This sign is on Highway 40 in Colorado, about 25 miles north of I-70. See sign on map!

Ed.: Congratulations to Mr. Bernard for his inaugural sign. His first sign submission was the only sign to have been posted and then revoked as a winner. Not only does Mr. Bernard come to the game with a solid winner this time, he has also registered the 2nd highest scoring sign yet! The high score isn’t even aided by a first in region bonus!

The intersection of math and the mountains is a surprisingly well travelled area. There are classroom tools that help students climb to the top with math. You can get a Math Mountain bulletin board to work with your class on math. There is even a company, Mountain Math, that brings mountain analogies to math. Far be it for the state with the highest peaks of the Rocky Mountains to be left out of the game, if only in small way.

This sign shows all that is Colorado. The mountains in the background, the open ranches of Colorado and the math the characterizes those great peaks. The math is

\sqrt 36 = 6

This sign is on I-76 westbound in Colorado with GPS coordinates at N40 06 34.9 W104 32 53.7. See sign on map!

Ed.: This sign represents the 3rd straight sign that uses square roots. Let’s hope we get some more diversity in upcoming signs! While square roots are fine, and are completely in compliance with the rules, they lack a mathematical flamboyance and are sparse with only two numbers on the sign.