Parent's Page

Don't force it! Playing an instrument is both mentally and physically challenging. Have your child practice in 10 or 15 minute increments throughout the day so they don't become tired. It will keep them from losing focus.
Let them play whatever they enjoy! They need to work on what was assigned, but if they also want to play Yankee Doodle 50 times in a row, let them. It's still practicing and building their flute muscles!
Give lots of praise! They will love your positive feedback.

FIND A TEACHER YOU AND YOUR CHILD CAN WORK WITH

For students under 10 or 11 years old, you should sit in on the lessons. At that age, they'll still need your help remembering what they will have to practice at home.
For students older than that, it can be up to them if they want you to join in or not, but either way stay involved and interested.
If you're going to pay for private lessons, find a teacher that specializes in the instrument your child wants to play. Almost anyone with a music degree can teach any instrument, it doesn't mean they are good at them all or know the repertoire.

TRUST YOUR EARS

Between lessons, with younger students, you will at some points have to play the role of teacher. If it sounds like a mistake, it probably is. Also, if it sounds right, it probably is, so tell them they sound good!
If you're stuck, call your teacher. I'd rather a student or parent call with a question than practice incorrectly or worse, not practice and be frustrated for a week.
Children will practice things they enjoy more than things they don't. If something sounds really bad and isn't getting better with practice (or if they avoid practicing it altogether), talk to your teacher about it. They may be able to substitute a different exercise or piece to learn the same skill that your child will enjoy practicing.