I knew someone was going to say they factored at the dinner table. wink I guess my point was that with a lot of math, you have to sit and do it on paper and practice. Of course, some of it can be discussed without need for that, but it's not as easy to teach casually at the dinner table, IMO.

(I have the feeling I am going to get pushback on this. Maybe it's just that we are not mathy.)