My son is expected to get a good to high A* at GCSE Maths, but his teachers have said that he may struggle at A level FM, he did not make the x-class that does iGCSE FM based on a exam sat in yr 9. In 2014 16 candidates took the gcse FM all got A's with distinctions.

He wants/needs to do FM so to keep the door open for the most competitive Unis for Computer Science .

I get the feeling they are only interested in those who are dead certs of A* e.g last yr,at A2, 6 candidates took it with 5xA* and 1xA, it seems to me they are more interested in their own interest then my son's interest but I am mindful that they could be right and it would be unfair on him to put him through such a tough subject where he could end up being miserable and out of his depth.

Having spoken to him he finds some of the more basic maths boring and quite enjoys thing like "proofs" for example the quad equation or co-sine rule, unfortunately he can be quite error prone in simple thing like forgetting to change signs when rearranging simple equations.

I think if they will allow him to do it because he will fulfill the criteria of A* at GCSE to do the subject at FM( A is the criteria for normal Maths), but is it in his best interest?