One of the things I hate the most about moving is finding a good mechanic. I personally know nothing about cars; I've never even successfully performed an oil change. So I'm forced to put a ton of trust in my mechanic to honestly and expertly service my vehicle. Because, when it comes down to it, I don't have enough knowledge about cars to tell a good mechanic from a bad one until it's too late.
That's how a lot of parents are with their music teachers. They don't know enough about the subject to tell a good teacher from a bad one, so they stick with what they've got until their car (aka: student) quits. And that's sad to see. Lots of people have disqualified themselves as "not having what it takes to play music," when in reality it wasn't them but their teachers who failed. I've seen this too much in music education, so I've posed 4 questions for you to determine if your music teacher is worth your money...