DS is going to start GCSEs next September (year 10). He came home yesterday clearly annoyed as the had been told their set for a subject that he has always been very good at. He was put into middle set bit cannot understand why he's not in the top. He has always been at least one whole (level with 3 sub levels) ahead of his peer group average and teachers have always said he is one of their advanced students in this subject at parents evenings. In his last report the teacher said his ability in this subject bodes well for an excellent performance at GCSE and even beyond. So do I phone school to discuss and what do I say? I have never felt the need to interfere in school life before and am a bit nervous at the prospect.