So is it effective to write in dot point when doing past papers? It will be less time consuming and u get the main point so u can do as much past papers as you can. Is it advise? My teacher doesn't want me to do that so what's ur advise?
Remember, understanding is more important than the past paper.
If you already know the exact answer to a question back to front, you don't need to do the question! If you are not too sure, maybe give it a go or do dot points to refresh your memory of things. If you have no idea or are really struggling with a question, probably try writing out the answer and looking at the answer (or do dot points to start understanding the topic and getting a feel for the main ideas/understand it more - however you like to learn).
So it really depends on what you are trying to do. If you are testing yourself for time or want to know if you can succinctly write a response to a question, do the writing.