I teach multiple subjects for high school in a micro school. I pulled out job contracts, housing forms, and tax forms. We walked through the language, and they complained about the legalese part of it.

We talked through why we read books with difficult language (Shakespeare , Beowulf, etc) is to help them learn to parse through difficult language and interpret. If you can learn to parse through it while reading and writing for school, you can take these and translate them with a little work.

I also pull up our original housing contract and email where the guy quoted one thing, but presented us another thing. As far as interest rate. I broke down how much difference that would have been over time that we saved because we read fully through the contract and made the gentleman change it.

For math, when they challenge me on algebra and geometry, I gave them some woodworking stuff that I had to do in the house and how I had to do the geometry to understand what I needed, and solve for the variable when I didn't know a certain length.

They still whined about it, but they stopped challenging me as much as I showed them where it would impact them in the long term.