I have often mentioned some favourite sources of notes on this blog, these are now collected together on one page under the A Level (16+) menu.
See also: Worked Examples – A Level (Sources of fully worked examples by topic)
A Level (16+)
- GCSE to A Level Transition
- Core Maths
- A Level (16+) Teaching Resources
- A Level Further Mathematics
- University Admissions Tests
- Mathematics for Science
- Mathematics for Psychology
- Data Science
See also this post on STEP Support – A-level Notes which has some A-level notes linked to Nrich and Underground Maths resources; the notes would be useful for any A-level student, not just those studying for STEP examinations.