quote: The phrase "A quarter past three" went out of style with the advent of the digital clock. We no longer have to estimate time due to the limitations of the analog clock, as such we say exactly what we mean, if we mean 3:10, 3:15, or 3:20 we just say it.
quote: While I agree it is important to teach kids the multiplication tables, this is not the 1970s where calculators are expensive with limited functionality, calculators are everywhere. You can find them on your computer, your phone, your tablet, you can buy them for $5 in most stores, or get which can do more them your advanced calculus teacher. So yes, I think it is important to teach kids to memorize the basic 0-10 multiplication tables, but they will probably never use it.
quote: It's why when someone makes a post about powering something with solar panels, I can usually tell at a glance whether he's in the right ballpark or seriously off, before I do any exact calculations.