I used a combination of the textbook, my teachers power points (which I annotate like crazy) the CCEA teachers guides which my teacher provides me, as well as a range of revision guides, past paper mark schemes (even if it's from the old spec, the marking points still have good theory), and essays from students who study the year above me as practical examples of what and what not to do. As well as this, there are online resources that I would use when necessary.
Most of your questions are marked on 4 key points (or at least are for my board) - knowledge, application, analysis, and evaluation. If you look at the Assessment objective points at the start of each topic you should be able to get a feel for how you should structure and annotate for each topic. So for example, the structure of evalutation questions for me is Definition, Advantage, rebuttal, disadvantage, rebuttal, conclusion. Anywhere the evaluation assessment objective point is brought up I structure my notes to accomodate for this.