Hi - just in the middle of all this ...
The offers are generally what is says in the prospectus though some (eg Edinburgh) might say BBB, get zillions applying and then ask AAA.... you might get BBB if there are mega extenuating circumstances.
Where is your DC thinking of applying and what for?
re the progression of scores - the AS module / paper scores are added to the A2 to give the final score / grade. To get an A* you have to get >90 marks in each A2 paper.. So if you get C at A2, mighty tricky to get enough to get up to A at A2...
the predicted grades will come from work done in class, tests etc. DS does tests / essays and these are marked as though they are AS exams and he gets a grade for this .. so the teacher can predict the AS scores, they get to know they see a lot of kids going the process
Re getting an A*:
What mark do you need to be able to receive an A*?
*80% UMS overall
*90% UMS Overall for the A2 units
You can't get an A* at AS and you don't get it for getting 90% overall. Only the A2 units count towards an A* meaning even if you get 100% in your AS units, if you get 89% in your A2 units you won't get an A*.
For Maths you need to get 90% avaerage in C3 and C4 and not 3 A2 units like the others. The 80% overall still stands.