spooky, you do have to relate back your supp material to gwen harwood AND the stimulus booklet in terms of issues of change portrayed. ive said it once and ill say it again - u must display an understanding of intertextuality in this area of study!
u expressed a query re: how u could relate the stimulus booklet texts to gwen's poems in detail. well, i suggest u do it by analysing the concepts of change evident in gwen's poems. there is an evident link between 'sky high' and 'the glass jar' for example. both texts exemplify an acquirement of knowledge and loss of childhood innocence in the persona. there's just one example you could explore. in your 'change' essay, i would focus on each strand/issue of changing eg, knowledge and its impact on change, progression from childhood to adulthood, how catalyst's instigate dramatic change, how change can also be subtle, etc... that's my theory on the most effective way to approach this module of study.
of course, i could just be talking nonsense... oh well