<p>No cash. My son is motivated to keep his grades up but too shy to do well in competition. Could that be your son’s problem? All I would do is talk to him, tell him how important it is and why, and (this works for my kid) tell him that I am proud of him and know he’ll do his best. Then drop it as best you can so he doesn’t get resentful. Leave it on a positive note.</p>