1 Need professional training, (basic skills training, teacher training courses, music learning)
2, just need a lot of energy and time to study, research and practice.
3, it is an internship!
Teaching primary school students first, the essential condition for primary school teachers is solid basic skills, and then the knowledge of music theory should at least give students enough things for primary education. It is experienced to teach slowly in primary school, and learn while teaching (for example; Intermediate, advanced, performance level)