I've been teaching a 9 year old kid piano for about 10 months and it has been going pretty well, but recently I was asked to teach a few more kids (one as young as 6) to play piano. Teaching the 9 year old kid was the first experience I've had teaching music and I tended to cater to his abilities while still challenging him and teaching him music and piano fundamentals in a way that he enjoyed. Now, I worried that if cater to all of my new students I will essentially be teaching them different ideas and miss some basic fundamentals.
How do I balance maximizing the student's interest in music with maximizing playing ability and should I teach them all in a similar way or cater to each?