A few basic tips...
#1
Become Involved With Your Child's Piano Training.
#2
Encourage Your Child As Much As Possible. Be sure to praise effort
as well as accomplishment. Do not critize your child for making
mistakes or for not learning as fast as another child you know.
Praise and rewards are the key to motivation. If your child seems
to be uncooperative it may just need more motivation and encouragement.
#3
Try to express interest in what your child is doing, even if you
are getting tired of hearing "Chopsticks". Encourage
your child in every way possible. Avoid criticism and focus on
praise for what your child does right. Even so-called "constructive
criticism" can be very demotivating.
#4
Provide As Much Cultural Enrichment As Possible. Bring music into
your child's life. Have music CDs around and listen to them. Make
music fun whenever you can.