In this short video, Excel in Key Subjects Principal, Mr. Idris Musty talks about the importance of KS3 and GCSE study and the implications KS3 outcomes can have on GCSE study. This can be of particular importance when it comes to subject streaming and making sure your child can achieve the highest possible grades. Of particular relevance is the fact that the top GCSE grades may not be awarded to students in lower ability sets.