NPR published a series of articles in 2012 entitled 'The Young Person's Guide to Making Music'. The following article was the most well-received within that series, and for good reason. If you've ever struggled with your child's weekly practice sessions, then read on for some good tips and advice on developing regular and enjoyable practice times.
http://www.npr.org/sections/deceptivecadence/2012/06/18/155282684/getting-kids-to-practice-music-without-tears-or-tantrums
http://www.npr.org/sections/deceptivecadence/2012/06/18/155282684/getting-kids-to-practice-music-without-tears-or-tantrums