In my junior high, there was a reading program where you could get some fairly dinky prizes for passing a test to prove you had read a book. I cheated that sys

In my junior high, there was a reading program where you could get some fairly dinky prizes for passing a test to prove you had read a book. I cheated that system pretty savagely - I would skim a book, look up cliff notes on the internet, and then pass the test. I can't say I really enjoyed many of the books I "read", nor remember much about them. In my opinion, any sort of extrinsic "performance"-based reward system is just going to lead to optimizing to the system (rather than learning) and to the system being gamed.