If you don't know anything about music (or even if you do), here's another way you can play a supportive role in your child's keyboard lessons.
As part of the assignment, the student almost always has at least one piece that is almost ready to perform. Many teachers prefer you to NOT monitor the entire practice session, but it's fun to listen to performance pieces, perhaps at the end of practice time.
Before you hear the piece:
Show your interest and support! Here are good questions to ask your performer:
Or, for more intermediate level students:
After the piece is over:
It's really important to immediately say something positive, no matter what. Really! Even if it was awful, there's always a plus to point out. If you have to, formulate a statement while you're listening, something like:
Whatever it is, find something to praise, and let this be the VERY first thing you say when the piece is over.