If you're interested in the benefits of chess, take a look at:
http://www.youtube.com/watch?v=A3yDvM8aplY
More tactics practice for your kid?
Try www.chesstempo.com or http://www.chess.com/tactics/
Need help with the endgame? Try: http://www.chess.com/article/view/study-plan-for-beginners-the-endgame2