Need advice from teachers or parents about maths sets. DS Y9 has been moved down a set for Maths this year. He is finding the work easy and says the ability range in the class means they are doing work he covered in Y7.
He didn't really struggle last year and did ok in assments. I would say he's of average ability and was comfortable in his Y8 set.
I have spoken with his teacher and explaining DS is finding the work so far easy. The teacher said that if DS 'proves himself' that he might be moved back up. I believe this is highly unlikely as it has rarely happened in the past. I am concerned that DS will not make progress this year if he remains in a situation where the work is too easy. He has already lost confidence in his ability as a result of this now believes he is dumb and rubbish at maths.
What can I do in this situation? I am normally one of those parents but I feel this is just too important to just wait and see. Do I just accept teacher knows best?
TIA