There three distinct steps in finding a teacher: telephone queries, calling references, and in-studio interviews.
Adult Students
The first step is to be clear on what your goals are in study. Do you want to play classical pieces? Jazz? Play for some practical use (church, school, children)? Some combination of goals?
How long do you allot yourself to reach these goals? The claim of "play the piano in 6 easy lessons" is fantasy. Remember that playing the piano is not like watching TV. YOU will be doing it, not sitting back and having it showered on you. Playing the piano involves reading the notation, listening/hearing, physical motor skills, and letting yourself go (interpretation). A multi-media event, if you will!
How long should it take? If you work hard (one hour a day or more), are an adult or mature teen, and have a good teacher, you can expect to be at late elementary/early intermediate level in one year. (This has been my experience, at any rate.) See elsewhere for a more detailed discussion of this in the first question of my Q&A file for students and parents.
Child and Teen Students
If you are looking for a teacher for your child, make sure you and your child talk about his own goals -and- your goals for him. They may not be the same. Also, make sure the child understands that playing a musical instrument will take effort on his part. He should agree to spend at least 30 min. a day on his music studies.
At the interview, I tell my prospective students that their schoolwork comes first every day, but after that, it's piano time. This is before talking on the phone, reading a book, watching TV, going out to play, etc. I also say that occasionally there will be days when a heavy schoolwork load or some other reason means that there will be time only for schoolwork and piano before it's bedtime; they must accept this possibility so they're not surprised when someday there's no playtime.
Where to Find a Good Teacher
The first place to look for a teacher is to ask friends/relatives who study. Ask what they like (and dislike) about that teacher.
Next, visit music stores and instrument dealers and ask for their list of teachers.
Your yellow pages can be another source. Besides teachers, look for the local music teachers' association and call the current president for a list of members. Most teachers' associations require a music degree for admission. (Some allow membership if the teacher presents "equivalent" preparation. Whether you feel comfortable with a teacher credentialed like this is a decision only you can make. Know, however, that improving skills and knowledge is a very good sign!)
Particularly if you are looking for lessons for a child, the school teacher, school music teacher, choir director (school and church), etc. can steer you in the right direction (toward teachers who are especially good with children).
Your piano technician is another good place to get teachers' names.
Call the local college or university's music department and ask for the chairperson of the piano faculty. Ask for recommendations of local teachers. Generally, a music department keeps a list of teachers for just this purpose. Note: these teachers may or may not have been screened in any way.
Also, look for a teacher in the classified ads of your local paper. If you have a local magazine ("Focus on the East Village"), check there for ads, too.
When you have all the names you can find (and after you have eliminated any who are obviously not a fit), see if any names appear more than once (for whatever reason). Call all these teachers first. If you do not find a teacher among these (see rest of procedure below), call the rest of them.
Interviewing the Teacher by Telephone
Your job here is to sift through the names you have and eliminate any that aren't a "fit," for whatever reason (location, price, available lesson times, pedagogy/curriculum, training, experience, for example).
I encourage you to take your time as you search for a teacher. You are investing not only money but time (never recaptured!) and effort. Spend each of these currencies wisely!
Here are some general areas you should explore with the teachers as you do your research.
(1) What are the teacher's academic/preparatory credentials? How long has the teacher been teaching? Teaching in this particular geographic area? How much experience has the teacher had in teaching children like yours (age, sex, learning disabilities, physical disabilities, absolute beginner, etc.)?
(2) How much is tuition? Are there other non-tuition fees? If so, what, how much, how often, and are the activities these extra fees cover optional? Is there an early-pay discount? Second-student discount ("family plan" - - don't count on it!)?
(3) How are make-up lessons handled? What if your child comes home sick in the middle of the school day or wakes up sick? What if your family wants to take a vacation? Does the teacher allow you to cancel lessons (that is, not come -and- not pay)?
(4) Does the teacher use any specific methodology (such as Suzuki)? What are the primary elements of whatever method this may be, and why is this one preferable to another method or the "traditional approach"?
(5) Does the teacher use a "method series"? If so, which one and why? If not, what is used instead and why? A method series is a group of related books by the same author, divided into "levels." Usually there is a song book, technique book, theory book, and a book of supplemental songs ("recital" book or a smilar title). Some teachers use method series throughout a child's study. Others use only the first one or two (or three) levels and then move to other material. Some teachers - - I'm one - - do not use method series at all.
(6) What are the major parts of the curriculum? Generally, these would be literature (songs), technique, music theory and history, and ear training. There might be composition, ensemble playing, or other specilizaed programs for students interested particuarly in them. Is pop music included? How much of the literature is pop and how much classical ("standard repertoire")?
(7) Are there any special programs in the studio, such as an electronic music lab, composition, or group sessions?
(8) How are materials obtained? Who pays for them? What other materials are needed for lessons? Metronome? Cassette recording tapes to record the lesson? Computer DVDs?
(9) How long does the teacher expect the child to practice daily? Does the teacher want the student to record pratice minutes? If not, how does the teacher structure home practice? does the teacher expect you to assist with daily practice? If so, doing what?
(10) Are you welcome at the lesson? I'd be kind of suspicious if you are barred outright. Although some teachers "discourage" it, they will "allow" it. Even if the teacher adopts the latter approach toward parental attendance, is this perhaps a red flag? It is my opinion that the teacher should want the parent there (especially for child under 13). This is so the parent will know what she will be hearing in the ensuing week, will know how to help at home during the week, and so on.
(11) Are there recitals? How many, approximately, each year? Where are they held? (A transfer student would be interested in whether music may be used or whether memory playing is required.)
(12) Where is the teacher located? Does the teacher travel to students' homes? If so, is there an extra fee for this? More on this below.
(13) What are the available lesson times?
(14) Most teachers teach private lessons. Some offer group sessions or the child, in addition to a private lesson. I'd steer clear of a teacher who offered only group (or partner) lessons. You want teaching geared to your child, not others!
(15) Ask for references. Particularly you want families that have children as closely-matched as possible to your child. If he's four, you'd like to talk to parents of other young boys. Parents of teen girls will be helpful, of course, but a "type match" will net you more information!
Note: Top-notch teachers will first ask you for your goals and questions (see above) and then answer them with your goals and concerns in mind. This helps you understand how the teacher's program translates itself to your child. If the teacher doesn't seem to have paid attention/correctly interpreted your goals, is generally distracted (do you hear children or pets in the background?), or does not take charge of the conversation at this point in the telephone chat, this may be a very bad sign.
Now that you've asked your questions, the teacher will ask his. He's trying to decide whether you might be a good fit with his program. Expect things like this:
(1) Does the child want to play or is it your idea? How does the child show interest? For how long has he indicated interest in learning to play the piano? If piano lessons are your idea (and this is perfectly fine!), is the child interested now that you mention it, not particularly enthusiastic but amenable, or says "no way!" ? If the child doesn't want to play the piano, it's going to be an uphill battle for everyone.
(2) Do you have a piano in the home? If not, how will you obtain one? When? (Go back to the consumer ed page and follow links there about pianos.)
(3) Are there siblings? How do they impact the availability of the parent to help the pianist if needed? (The teacher will ask you to make other arrangements for them during lesson times.)
(4) Does anyone else in the family play the piano? Another intrument or sing?
(5) What other activities does the child have? This gives the teacher an idea of whether the child is over-scheduled and adding something more means the child will be stressed and/or will not have time or energy to devote to piano study.
(6) Who will be bringing the child to lessons? Do you have a back-up plan in case the driver is unable to get the child to the lesson?
(7) What sorts of music does the child enjoy? Any he does not? (Rap is usually the answer here!) What sorts of music does the family enjoy?
Note: Often, parents want the teacher to come to them. If this is the primary criterion for you, mention it right way. If the teacher doesn't travel, it's best that you end the conversation after a few closing pleasantries...unless you decide you want to hear what the teacher has to say and ask why coming to her studio is superior to having her come to you.