alt Hacker NewsThat's how my parents taught. Design questions to make the students apply their knowledge rather than regurgitate it. Forget a fact it's being applied to, look it up. Don't understand the concepts, you're stuck. Know the material, piece of cake. One time I was in my father's classroom because he was showing a film he wanted me to see. There was a quiz afterwards, he knew it wouldn't be alien to me and had me try it. 5 minutes later I turn it in, the class thinks I gave up. Then he says I aced it. But I graded an awful lot of his tests, I know that when I didn't know the material I wouldn't stand a chance. The day I found a question that I could guess was notable enough to me that I asked my mother about it. (A case of not knowing the fact. Her supplying the information that the tribe in question was a stone age culture in the New Guinea jungles made the why apparent.)
One physics exam question I remember was derive Maxwell's Equations from the starting point of presuming the existence of magnetic monopoles. This sounds like an intractable problem, but it turned out that if you really understood how they were derived, all you had to do was switch out the charge monopoles with the magnetic monopoles, and it was a piece of cake.
A similar exam problem in AMA95 was to derive the hyperbolic transforms. The trick there was to know how the Fourier transforms (based on sine/cosine) were derived, and just substitute in sinh/cosh.
If you were a formula plugger or just memorized facts, you'd be dead in the water.