At our school, in Key Stage 4 (years 10/11) there are a couple of 'level 3' courses targeted at the most able students, one as an option instead of a GCSE (visible and choose-able by all, but the wording makes clear where it's pitched) and the other as an additional after-school course (by invitation only). I think there are also a couple of extra/alternative courses targeted at the lowest attaining students too. I'm wondering if this happens in most schools. If so, do schools usually have published "criteria" for accessing these targeted courses or is the selection always fluid and informal?
I'm curious as to whether there are official DfE "rules" published about this sort of internal selection.