What do you mean by "intrinsic motivation"?
Intrinsic motivation comes from within—it's when we do something because we want to. Extrinsic motivation is fueled by external factors, like candy and extra TV time. For example, someone who is extrinsically motivated goes to work just for the paycheck. An intrinsically motivated employee goes to work because he genuinely enjoys his work and has a better chance of doing well.
Studies show a strong connection between intrinsic motivation and success in academics and careers. Education and psychology experts also agree that you can take concrete steps to improve your child's intrinsic motivation.