Paper 1: It's your Area of Study work. It's ALL on "Change".
Section I- Comprehension questions on Change
Section II- Creative writing of some sort. Must know most of the text types
Section II- This is usually an essay, but may not be. (Sorry if that's confusing)
You use ONE text from the Stimulus booklet for this, your prescribed text, and two other related texts.
Paper 2: This is all your module studying
You need to know at LEAST 3 Bruce Dawe Poems for the HSC, I'm not sure about your trials though. For mine I only needed to know two.
But it is BEST to learn all of them.
All the best and Good luck