Independently studying GCSE Maths in Northern Ireland

These are the required exams you’ll have to sit to get certain grades:
D - T1
C - T2 and T5
B - T3
A - T6
A* - T4

I have only sat T2/5 so I’m not sure where you’d have to go for the other tiers.

Contact your local further education college for more information as I know Belfast Met has some maths GCSE courses.

I'd be grateful for some advice.

What is the main GCSE examining board in Northern Ireland?

Where can I find specifications / syllabus?

What are some really good textbooks for GCSE Maths in Northern Ireland?

Any advice for someone wanting to study it independently?

Many thanks.

If you are self-teaching you aren't restricted to CCEA (the NI exam board). Indeed I'd suggest the mainland boards will have more resources/textbooks/revision guides.

e.g. this exam centre in Belfast covers all the main exam boards
https://www.conwayeducation.org/examination-centre

NB. I have no idea if that centre is any good or their costs.

CCEA exams are around £20 each. (That’s how much they appear to cost according to my school)