My daughter teaches 6th grade. She teaches how the various math systems apply to everyday life. When one little boy told her he didn't need to know certain things because he was going into the family business. So she asked him to bill a client for the work to be done. They fix and make clocks/watches. Simply applying the tax was going to matter. He buckled down once it was applied to his life.
It really bothered me that I was in the advanced math classes and didn't learn to do basic necessities of life like doing one's taxes, or the bank book and stock pages and various other items that math applies to in everyday life. My husband still does our taxes.