Here are some tips that I have:
-For your national study and study in peace and conflict, historiography is important. You will notice that the top band answers always make some reference to historians opinions etc. A helpful thing to do is to go through the Key Features, Groups, and Key Concepts for each topic and try to find some quotes and opinions from historians that could cover each of these. It's especially helpful to find quotes which could be incorporated in to essays on a few of the key features.
-Summarize your notes under headings of the Key Features, Groups and Concepts. That way you can be sure that you have everything covered. Remember that it is possible that they could just take a Key Feature and perhaps a concept and combine them to make a question. Eg. Assess the impact of anti-communism on American foreign policy during the period 1956-1975
-It's really important to write practise essays. That way you are more prepared for the different questions that could be asked in the exam. Would you be happy if they asked the same question in the HSC that you were asked for a previous assessment? Most people would be, because they would feel more prepared. Practise essays are an important part of exam preparation.
-An easy way to memorize dates.... here goes. Instead of just writing out lists of dates, write them on little cards and make modern history flashcards. Write the event on one side of the card, and the date on the other. That way you can quiz yourself on the dates, meaning you are actively engaging with the information, rather than simply reading it off a sheet. This technique works great for maths formulas too .
-Practise doing essays under "exam conditions". Give yourself mini exams.... for example, choose a small part of the syllabus, ie The rise of Nazism, study it for a few hours (however long you need) and then do an essay without your notes, just like as if it was an exam.
Please everyone, contribute your study tips to this thread so we can help each other out!!