They have a formula for time payment... my dad brought home a General exam the other day and I was like, huh...? Time payment formula... makes you forget the reasoning behind it.
My Maths teacher doesn't even teach us some formulae so we remember why we're doing what we're doing, like that t(r+1)/t(r) that I saw a formula for the other day.
Ick... periodic table... my Year 7/8 Science teacher would test us on it every single day, and make us write out each one we got wrong 20 times...
No wonder I dropped Science... it was scary...