Has anyone done S3/S4 for A level Maths/ FM? Watch
S3 was tricky in some places, quite a step up from S2 and there were a few different topics but all fairly interesting. I found that it was the most difficult out of S1-4.
S4 was easier, a bit of a step up from S2. Short (3 chapters long), quite interesting and most of the formulae are given to you in the exam so you don't need to worry - you just need to know how to use them.
Both quite enjoyable modules.