You don't need to make learning fun. Learning is fun. The only real problem is to stop making it not-fun. Of course the Tom Sawyer principle comes into play he

You don't need to make learning fun. Learning is fun. The only real problem is to stop making it not-fun. Of course the Tom Sawyer principle comes into play here: "Work consists of whatever a body is obliged to do, and play consists of whatever a body is not obliged to do." I don't see a great way around that.