Klenda and I decided to take the Pre-Calculus/Trig on the road (or at least the driveway).
I'm not sure why math feels more "real" when you do it larger and on the ground, but it does.
We ended up trying to work out the heights of trees and houses with a protractor, our feet, and a calculator as a trig table.
It worked! Kind of. They were pretty rough estimates because we had a hard time getting accurate angles with just our eyes and the protractor.
But the principle worked, it was a lovely spring morning, and we had fun.
I wonder how much accurate surveying equipment would cost...