When I sit down with my students I ask them about their week to see what they've been up to or busy with.
Then I open their writers and go through the check list of what was to be practiced. If they say they have not practiced the writen material and I recgonize that they have had other important events durring our greating I ask them to simply play whatever they played when they sat down at the piano. Usually they did sit down to play something. A scale an old piece, something they tried to play from ear from a movie. (Harry Potter or Nemo) is popular currently.
So I ask them to play it for me. They immediately get involved in the instrument and in themselves.
Then I grandly tell them how lovely it was (no matter what went wrong) then I tell them how wonderful they are for actually learning or re-learning something that they were not even asked to learn, they took their learning into their own hands. They empowered themselves and did it alone and this is where you must congradulate them for their endevours.
Then ask them to take a look at their classical pieces and give them some history on the era, composer, and why the music sounded the way it did way back when.
I have taken children away from the piano and danced minuets, waltzes and polonaise to teach meter.
Sing the line. Have a scale race. Play with your eyes closed (they love this)
When I talk about the composers I get tons of questions. That's where you want them. The more they ask, the more they will learn and succeed.
Learn to Heal with music not Hurt.
And as much as you teach a student to listen to music, you too must teach yourself to listen to the student.
Don't let your frustrations get the better of you.
Smile and enjoy even one bar a music played with vigour no matter how baddly it may have sounded.
Then you can talk. Listen first, talk later.
Let the student guide you firstly, they'll teach you alot.
Right now they are shouting out their limitations.
Slow down, play a duet or a game of "Find that note"
and enjoy the experience of the moment not of the future.
The one thing I tell my students who are discouraged is, The one great thing about learning anything is that you can never get worse...... It's impossible...
You can only improve. Then I tell them about famous persons who have had a very hard time.
Arm yourself with patience and a vast knowledge from many sources and you will not only have great players you will have a great life.
Surendipity
Now go out there and smile (alot)