Postgraduate secondary courses in mathematics, physics, chemistry, biology, Welsh or computer science (biology is only a classified priority subject from the 2021/2022 academic year)
Cyrsiau ôl-raddedig uwchradd mewn mathemateg, ffiseg, cemeg, bioleg, Cymraeg neu gyfrifiadureg (mae bioleg ond yn bwnc dosbarthedig o flwyddyn academaidd 2021/2022)