training frustrations

I had to show my apprentice today how to use the modulus operator, as he just didn't get it.

But before that I had to explain how to divide integers leaving a quotient and remainder. He didn't get that either.

"Ok, so tell me the remainder of one divided by two..."
(several seconds pause)
"That's a bit hard."

I ended up drawing diagrams and using coins to explain how to do division. Just what are they teaching them these days??

Main> (0/0) <=> (0/0)
True
Main> (\ x y -> (x == y) || (x > y) || (x < y)) (0/0) (0/0)
False