Firefighting discussions can be amusing. I mentioned to a Marine that I liked the firefighting lessons best. He did too. Then I thought about the difference. In the Navy it means the ship is on fire and if we don't put it out we all die. In the Marines it's about responding to the fact that someone decided to "support your right to arm bears" and all bleep broke loose. Trouble? Dial 911-Marines.
Some of the skills we learned were very simple. Everyone went in knowing how to fold or cut stuff in half, so they taught us folding stuff in thirds. Everyone went in knowing how to walk, so they taught us how to walk in step. Everyone went in knowing how to tie a square knot (hmmm, maybe not everyone), so they taught us how to tie a suit tie in a square knot (it's called a Half Windsor in clothing discussions) and how to tie a nice looking square knot in our Cracker Jack uniform. These skills are far more adaptable than you'd think. Consider how many numbers you can get by multiplying 2s and 3s and so how many ways you can divide up big stuff. Marching in step is actually use of peripheral vision and teamwork. If you can morph a square knot into a tie think of all of the other shaping you'll be able to do.
All of this was a matter of breaking methods down to much smaller basics than is usually taught. Get the basics right and you'll tend to get the entire process right. Find the smallest set of basics and you'll tend to get the biggest most advanced process right. How do you eat an elephant? One step at a time. So learn the smallest steps. It took me forever to appreciate that was why we learned such simple skills in boot camp.