Hmmm....I'm interested in using tools of addiction to get people
"hooked" on math.
I.e., make the first few sets/problems easy, to get started -- instant
gratification.
Then slowly pull out the supports, until people are spending hours working
on them!

(this is called Operant Conditioning: guiding individuals to do fancier and
fancier tasks)

fixed interval:
  give reward every time rat hits lever five times, say
	(analog: give easy problem every 5 problems?)
	
random ratio
  give reward some random frequency
	(most effective)
	(analog: make some (undetermined) problems easy, so students work hard on all?)
	...that is, makes it harder to predict how much you need...

frustration:
- if you feel that you're not advancing/getting rewarded/making progress

(so you want to suggest progress w/o quantifying it...)

...have several goals (understanding, grades), and have people always close to
-some- goal (so always progress), but not quite able to track all of them...

(hmmmm....I wonder how my grading system works?)
(is this part of why uncertainty/stress makes people work harder?)


***************
behaviours are not inherently rewarding:
it's the reinforcements that make them rewarding.
Achievements are only achievements b/c you're used to the reinforcement