We're considering a move back to UK from abroad. DD is in Yr 10 now so thinking this would be tricky in until end of Yr 11 but that might be a good time. However, she's in the IB programme and won't be taking GCSEs. Obviously it's an academically rigorous programme and she's in the extended maths class which prepares students for higher level maths in the IB but aside from the school's assessment, there are no public exams (although they do use quite a few IGSCE textbooks) . We haven't yet spoken with any admissions of any schools because it's all a bit hypothetical at the moment but would her lack of GCSEs cause any problems in sixth form entrance?