I've been attempting to find out more research and resources on generating random math problems based on performance and calculated difficulty. There's a few places that I'm just now stumbling upon, but I figured I'd ask the community what they recommend reading up on.
There's an article here on an application based on research at MIT http://www.mathscore.com/math/mathProblems.html I'm wondering where specifically that research resides or what I can learn from it and others.
My goal is to first understand how probability, priority queues and anything else plays a role (if at all) in generating varying math problems.
Any resources and recommended reading would be most useful if you can provide that.