DD1 (14) very musical (wants to teach it) plays several instruments, currently having tuition in 3. One instrument tutored at a Saturday music school, one at school - 30 minute individual, one 30 minute private.
So has come across a variety of teachers.
All have been very different, some favouring grades more than others.
Ive heard that a grade a year is about "average",
She did start Flute at secondary school, 20 minute individual lessons. Did Grade 1 after about 6 months (merit). But the teacher was quite pushy with grades, not especially a good teacher. She gave up flute after 2 years, anyway. In my opinion it should have been sooner, but as it had been her dream instrument since little, did not want to admit she had got it wrong.
By far the Best teachers are those at music school. They are encouraging all round music learning, reforming, duets, ensembles and playing for enjoyment. DD had grade 5 in her first instrument when she started there, but has not taken and is not even working towards any since. Although she can play grade 7 pieces.
The teacher she has for the instrument she learns at school also does not do much in the way of grades. She has not taken any on that instrument since starting over 3 years ago. But she plays in an ensemble with others at grade 4/5 standard.
Her private tuition is with a teacher who is also excellent, and likes grades.
I guess what I am trying to say is that some kids suit different methods of tuition to others. And the lower grades can be quite easy once you have done some on one instrument. But constantly learning pieces for the purpose of grades alone can be quite soul destroying.
Also, if it's your DDs first instrument, she is learning to read music and some theory basics at the same time. Just a thought, buy could this be what she is struggling with? Is she musical generally - Can she sing in tune? Does she have a good sense of timing?