I'm a little confused too, I'm sorry, having been through the university application process I've never seen it done on gcse, those are simply a predictor for a level, and both those results and more importantly a level is what's taken as predicted for an conditional offer, with many other factors included, from personal statements, extra curricular activities to interviews onwards.
I sat through the oxbridge presentation from both colleges at my daughters school, and my daughter had ten GCSEs, at a mix of a and a star, and was predicted and achieved two a star and an a for a level and she decided to not apply to oxbridge against her teachers wishes, and went for what is currently one of the top ten law schools in the U.K due to the teaching ethos and how she learned.
At no stage were oxbridge approaching her at GCSE, so honestly, im confused by this post, it was always at AS level they approached her, And GCSE was used as no more than a predictor for a conditional offer. Maybe it's changed? She's in her second year of her law degree so not that long ago.🙄
On the other hand, Is this some parental wishing? Because if it is, let your son do his work and then sit in if oxbridge present at your child's school for applications, and then help him decide if that's the best place for him based on what degree he wishes to do and how he learns best. For many as long he's in one of the top Russel group univestities then both yours and his aspirations will be met, but the Entrance criteria even in Russel group varies.
To clarify, my daughter needed her three A levels at A grade to get her current place , she had a condutiinal offer, three As and she had a place. She exceeded that, she got two a star and an a. She would have needed at least three a star at a level for a place at oxbridge for law and even then it was based on much more including her extra curricular activities. So possibly in the region of four or five a levels at a or a star plus extra curricular and work experience,
I think you're too early to be thinking about this. As is he. Support him through his GCSEs to do the best he can and as he moves forward he can decide what degree he wishes and he can look at what he can hope to achieve and what uni would be best for him.If it's oxbridge, you and they will know soon enough, 💐