This resource allows students to be familiar with the writing section of NAPLAN. That is, time management, what a narrative and persuasive text entails, etc.
This powerpoint also includes various sample student works (both persuasive and narrative texts) as well as a marking criteria.
I used this powerpoint with my class and when they took on the role as 'teachers' and marked the students' work, they were quite accurate and knew what to look for by referring to the marking criteria.
Hence, it is a fun lesson and there is also a writing task at the end which students can choose to write either a narrative or persuasive piece (or both).