Hi! I received a study score of 50 in HHD this year.
I honestly do not think I could have gotten a 50 if I didn’t love the subject so much. This obviously isn’t the do all or end all, as other people get a 50 and don’t necessarily like HHD. However, my love for the content meant that it sunk in quite easy. I would really encourage you to think about WHY you want a 50 in this subject specifically. That will help you to achieve your goal.
In terms of my approach to SACs and the exam, it was pretty much in two stages. Firstly, I’d learn all the necessary definitions off by heart using Quizlet. In my opinion, unit 3 has more definitions and content to memorise than unit 4, so keep that in mind. Secondly, put what you’ve learned into a meaningful form. I used to have discussions with my teachers about the different outcomes of a particular case study or disease. Just find something that works for you so that the information really sinks in.
Take advantage of the fact that HHD is so focused on the real world. Make sure you don’t just memorise the content but that you truly understand it. VCAA are going to mix up the study design in ways that don’t make sense (example: the question with iron and the interrelationships of health and wellbeing on the 2019 exam) so you need to be confident with the material.
Hope this helps! Happy to answer any other questions.