The problem with rewards is that they are addictive and kids become very dependent on them. The only reason why kids d or do not do things is to get a reward or avoid punishment. Because kids are so unmotivated we repeatedly need to offer rewards which again reduces interest in the task. The problem is also that when rewards co-opt intrinsic motivation and preclude intrinsic satisfaction , the extrinsic needs become stronger in themselves. Thus , people develop stronger extrinsic needs as substitutes for more basic , unsatisfied needs…. They end up behaving as if they were addicted to extrinsic rewards. The claim that we need to use rewards because a task is uninteresting or kids are unmotivated is just fueling the situation and the last thing we should be doing is giving rewards because they undermine interest. Promising a reward to someone who is unmotivated or demotivated is like offering salt water to someone who is thirsty, it's not the solution it's the problem. Rewards , do motivate. Rewards motivate kids to get more rewards.