I stumbled onto what appears to be a great music resource. I've explored several pages and it all looks like it is appropriate content. As always, you should review any sites before sharing them with your student.
The site provides scrolling chords and lyrics along with a vocal and rhythm track to provide your ukulele player with unlimited practice with many traditional songs.
http://www.youtube.com/user/LDsongscreen/videos?sort=dd&view=0&page=1
